UK IEREX15CW.CE7 · White
Manufacturer specifications for Sony IER-EX15C, part IEREX15CW.CE7, listed by Sony UK.
Specifications checked 19 Oct 2026.
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UK WHCH720NB.CE7 · Black
Manufacturer specifications for Sony WH-CH720N, part WHCH720NB.CE7, listed by Sony UK.
Specifications checked 19 Oct 2026.
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Differences first. Select a topic for its graphic, sources and conditions.
Yes and No describe the listed feature. Missing evidence stays unverified.
Open-back earcups are not sealed. Start here if your listening space is quiet; this construction is not a sound-quality rating.
Start with your listening environment. Open and closed earcups suit different surroundings. A closed back is not the same as active noise cancellation. Check the exact cable and headphone output. We do not turn impedance, driver size or unpaired lab results into a sound-quality score.
4 verified differences, most decision-relevant first. Missing information stays separate.
Manufacturer specification · Original analogue/USB inputs and Bluetooth version declarations remain separate. A connector does not establish every host protocol or a microphone path. General Features / PLUG: USB-C®
Sony UK — IER-EX15C full specificationsManufacturer specification · Original analogue/USB inputs and Bluetooth version declarations remain separate. A connector does not establish every host protocol or a microphone path. General Features / PLUG: Gold-plated L-shaped stereo mini plug; General Features / INPUT(S): Stereo Mini Jack; Bluetooth® Specification / BLUETOOTH® VERSION: Bluetooth Specification Version 5.2
Sony UK — WH-CH720N full specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · General Features / WEARING STYLE: Wired Inner-ear
Sony UK — IER-EX15C full specificationsManufacturer specification · General Features / WEARING STYLE: Over Ear
Sony UK — WH-CH720N full specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Literal manufacturer model-column row: General Features / CORD TYPE: Y-type
Sony UK — IER-EX15C full specificationsManufacturer specification · Literal manufacturer model-column row: General Features / CORD TYPE: Single-sided (detachable)
Sony UK — WH-CH720N full specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Literal manufacturer model-column row: Summary / WHAT'S IN THE BOX: Cable adjuster Hybrid silicone rubber earbuds Operating Instructions Warranty Card
Sony UK — IER-EX15C full specificationsManufacturer specification · Literal manufacturer model-column row: Summary / WHAT'S IN THE BOX: Connection Cable USB Cable
Sony UK — WH-CH720N full specificationsCheck the exact configuration and source conditions for your use.
Not listed by the manufacturer in the captured full model specifications and exact-variant declarations. · Manufacturer specification
Sony UK — IER-EX15C full specificationsManufacturer specification · Noise Cancelling with Dual Noise Sensor technology and the Integrated Processor V1
Sony UK — exact WHCH720NB.CE7 identity and image declarationEvidence is missing or conflicting on at least one side. This is not a verified difference.
Manufacturer specification · General Features / DIRECTION OF MICROPHONE: Omni directional
Sony UK — IER-EX15C full specificationsNot listed by the manufacturer in the captured full model specifications and exact-variant declarations. · Manufacturer specification
Sony UK — WH-CH720N full specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
Not listed by the manufacturer in the captured full model specifications and exact-variant declarations. · Manufacturer specification · Music playback, communication, waiting, charging and NC modes retain their separate source labels. A communication figure is not music-playback endurance; charging-case endurance is separate.
Sony UK — IER-EX15C full specificationsManufacturer specification · Music playback, communication, waiting, charging and NC modes retain their separate source labels. A communication figure is not music-playback endurance; charging-case endurance is separate. Battery / BATTERY CHARGE TIME: Approx. 3.5 hrs; Battery / BATTERY CHARGE METHOD: USB; Battery / BATTERY LIFE(CONTINUOUS MUSIC PLAYBACK TIME): Max. 35 hrs (NC ON) , Max. 50 hrs (NC OFF); Battery / BATTERY LIFE(CONTINUOUS COMMUNICATION TIME): Max. 35 hrs (NC ON) , Max. 40 hrs (NC OFF)
Sony UK — WH-CH720N full specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
The source does not supply one unqualified nominal impedance. Its operating-state declarations remain separately available. · Manufacturer specification
Sony UK — WH-CH720N full specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · General Features / DRIVER UNIT: Dynamic, 30 mm
Sony UK — WH-CH720N full specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · Bluetooth® Specification / SUPPORTED AUDIO FORMAT(S): SBC, AAC
Sony UK — WH-CH720N full specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · Bluetooth® Specification / PROFILE: A2DP, AVRCP, HFP, HSP
Sony UK — WH-CH720N full specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · Bluetooth® Specification / BLUETOOTH® VERSION: Bluetooth Specification Version 5.2. A version alone does not establish every optional protocol or host feature.
Sony UK — WH-CH720N full specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · General Features / FREQUENCY RESPONSE: 7 Hz - 20 000 Hz (JEITA)
Sony UK — WH-CH720N full specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · General Features / FREQUENCY RESPONSE(BLUETOOTH® COMMUNICATION): 20 Hz - 20 000 Hz (Sampling frequency 44.1 kHz)
Sony UK — WH-CH720N full specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · General Features / IMPEDANCE (OHM): 325 ohms (1 kHz) (when connecting via the headphone cable with the unit turned on) , 31 ohms (1 kHz) (when connecting via the headphone cable with the unit turned off)
Sony UK — WH-CH720N full specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
Manufacturer specification · Size & Weight / WEIGHT: Approx. 3g
Sony UK — IER-EX15C full specificationsNo source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Manufacturer specification · General Features / DIRECTION OF MICROPHONE: Omni directional
Sony UK — IER-EX15C full specificationsNo source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · General Features / PASSIVE OPERATION: Yes
Sony UK — WH-CH720N full specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · Literal manufacturer model-column row: Bluetooth® Specification / EFFECTIVE RANGE: Approx. 10 m
Sony UK — WH-CH720N full specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · Literal manufacturer model-column row: Bluetooth® Specification / FREQUENCY RANGE: 2.4 GHz band (2.400 0 GHz - 2.483 5 GHz)
Sony UK — WH-CH720N full specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · Literal manufacturer model-column row: Bluetooth® Specification / SUPPORTED CONTENT PROTECTION: SCMS-T
Sony UK — WH-CH720N full specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · Literal manufacturer model-column row: General Features / AMBIENT SOUND MODE: Yes
Sony UK — WH-CH720N full specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · Literal manufacturer model-column row: General Features / DSEE: Yes
Sony UK — WH-CH720N full specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · Literal manufacturer model-column row: General Features / FREQUENCY RESPONSE (ACTIVE OPERATION): 7 Hz - 20 000 Hz (JEITA)
Sony UK — WH-CH720N full specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
Manufacturer specification · Literal manufacturer model-column row: General Features / MAGNET: High power neodymium magnets
Sony UK — IER-EX15C full specificationsNo source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · Literal manufacturer model-column row: Noise Cancelling / AMBIENT SOUND MODE: Yes
Sony UK — WH-CH720N full specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · General Features / SENSITIVITIES (DB/MW): 108 dB / mW (when connecting via the headphone cable with the unit turned on) , 99 dB / mW (when connecting via the headphone cable with the unit turned off). Preserve the manufacturer’s dB/mW reference; no dB/V or independent measurement is substituted.
Sony UK — WH-CH720N full specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
Manufacturer specification · General Features / WATERPROOF: No
Sony UK — IER-EX15C full specificationsNo source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
The manufacturer’s mass statement does not specify whether it covers one earpiece or the complete pair. No complete-pair mass is inferred. · Manufacturer specification
Sony UK — IER-EX15C full specificationsManufacturer specification · Size & Weight / WEIGHT: Approx. 192 g
Sony UK — WH-CH720N full specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
4 shared fields have the same recorded value.
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| Specification | Sony IER-EX15C | Sony WH-CH720N |
|---|---|---|
Manufacturer wearing styleDifferent SourcesSony IER-EX15C Manufacturer specification · General Features / WEARING STYLE: Wired Inner-ear Sony UK — IER-EX15C full specificationsSony WH-CH720N Manufacturer specification · General Features / WEARING STYLE: Over Ear Sony UK — WH-CH720N full specifications | Wired Inner-ear | Over Ear |
Complete earphone-pair mass SourcesSony IER-EX15C The manufacturer’s mass statement does not specify whether it covers one earpiece or the complete pair. No complete-pair mass is inferred. · Manufacturer specification Sony UK — IER-EX15C full specificationsSony WH-CH720N Manufacturer specification · Size & Weight / WEIGHT: Approx. 192 g Sony UK — WH-CH720N full specifications | Not listed by the manufacturer | 192 g |
Manufacturer mass statement (pair basis unlisted) SourcesSony IER-EX15C Manufacturer specification · Size & Weight / WEIGHT: Approx. 3g Sony UK — IER-EX15C full specificationsSony WH-CH720N No source recorded. | Approx. 3g | Not provided |
Manufacturer acoustic construction SourcesSony IER-EX15C Manufacturer specification · General Features / HEADPHONE TYPE: Closed Sony UK — IER-EX15C full specificationsSony WH-CH720N Manufacturer specification · General Features / HEADPHONE TYPE: Closed Sony UK — WH-CH720N full specifications | Closed | Closed |
Manufacturer water-resistance declaration SourcesSony IER-EX15C Manufacturer specification · General Features / WATERPROOF: No Sony UK — IER-EX15C full specificationsSony WH-CH720N No source recorded. | No | Not provided |
COLOUR SourcesSony IER-EX15C Manufacturer specification · Literal manufacturer model-column row: COLOUR: Pink Blue White Black. These are model-wide finish options; the exact selected part’s finish is listed separately. Sony UK — IER-EX15C full specificationsSony WH-CH720N Manufacturer specification · Literal manufacturer model-column row: COLOUR: Pink Blue White Black. These are model-wide finish options; the exact selected part’s finish is listed separately. Sony UK — WH-CH720N full specifications | Pink Blue White Black | Pink Blue White Black |
Manufacturer finishDifferent SourcesSony IER-EX15C Manufacturer specification · Exact selected manufacturer part’s finish, not every colour offered for the model. Sony UK — exact IEREX15CW.CE7 identity and image declarationSony WH-CH720N Manufacturer specification · Exact selected manufacturer part’s finish, not every colour offered for the model. Sony UK — exact WHCH720NB.CE7 identity and image declaration | White | Black |
Manufacturer connection declarationsDifferent SourcesSony IER-EX15C Manufacturer specification · Original analogue/USB inputs and Bluetooth version declarations remain separate. A connector does not establish every host protocol or a microphone path. General Features / PLUG: USB-C® Sony UK — IER-EX15C full specificationsSony WH-CH720N Manufacturer specification · Original analogue/USB inputs and Bluetooth version declarations remain separate. A connector does not establish every host protocol or a microphone path. General Features / PLUG: Gold-plated L-shaped stereo mini plug; General Features / INPUT(S): Stereo Mini Jack; Bluetooth® Specification / BLUETOOTH® VERSION: Bluetooth Specification Version 5.2 Sony UK — WH-CH720N full specifications | PLUG (USB-C®) | PLUG (Gold-plated L-shaped stereo mini plug); INPUT(S) (Stereo Mini Jack); Bluetooth wireless |
Manufacturer battery declarations and conditions SourcesSony IER-EX15C Not listed by the manufacturer in the captured full model specifications and exact-variant declarations. · Manufacturer specification · Music playback, communication, waiting, charging and NC modes retain their separate source labels. A communication figure is not music-playback endurance; charging-case endurance is separate. Sony UK — IER-EX15C full specificationsSony WH-CH720N Manufacturer specification · Music playback, communication, waiting, charging and NC modes retain their separate source labels. A communication figure is not music-playback endurance; charging-case endurance is separate. Battery / BATTERY CHARGE TIME: Approx. 3.5 hrs; Battery / BATTERY CHARGE METHOD: USB; Battery / BATTERY LIFE(CONTINUOUS MUSIC PLAYBACK TIME): Max. 35 hrs (NC ON) , Max. 50 hrs (NC OFF); Battery / BATTERY LIFE(CONTINUOUS COMMUNICATION TIME): Max. 35 hrs (NC ON) , Max. 40 hrs (NC OFF) Sony UK — WH-CH720N full specifications | Not listed by the manufacturer | BATTERY CHARGE TIME (Approx. 3.5 hrs); BATTERY CHARGE METHOD (USB); BATTERY LIFE(CONTINUOUS MUSIC PLAYBACK TIME) (Max. 35 hrs (NC ON), Max. 50 hrs (NC OFF)); BATTERY LIFE(CONTINUOUS COMMUNICATION TIME) (Max. 35 hrs (NC ON), Max. 40 hrs (NC OFF)) |
General Features — CORD TYPEDifferent SourcesSony IER-EX15C Manufacturer specification · Literal manufacturer model-column row: General Features / CORD TYPE: Y-type Sony UK — IER-EX15C full specificationsSony WH-CH720N Manufacturer specification · Literal manufacturer model-column row: General Features / CORD TYPE: Single-sided (detachable) Sony UK — WH-CH720N full specifications | Y-type | Single-sided (detachable) |
General Features — CORD LENGTH SourcesSony IER-EX15C Manufacturer specification · Literal manufacturer model-column row: General Features / CORD LENGTH: Approx. 1.2m Sony UK — IER-EX15C full specificationsSony WH-CH720N Manufacturer specification · Literal manufacturer model-column row: General Features / CORD LENGTH: approx. 1.2 m Sony UK — WH-CH720N full specifications | Approx. 1.2m | approx. 1.2 m |
Manufacturer-listed Bluetooth audio formats SourcesSony IER-EX15C No source recorded. Sony WH-CH720N Manufacturer specification · Bluetooth® Specification / SUPPORTED AUDIO FORMAT(S): SBC, AAC Sony UK — WH-CH720N full specifications | Not provided | SBC, AAC |
Manufacturer-listed Bluetooth profiles SourcesSony IER-EX15C No source recorded. Sony WH-CH720N Manufacturer specification · Bluetooth® Specification / PROFILE: A2DP, AVRCP, HFP, HSP Sony UK — WH-CH720N full specifications | Not provided | A2DP, AVRCP, HFP, HSP |
Manufacturer Bluetooth version SourcesSony IER-EX15C No source recorded. Sony WH-CH720N Manufacturer specification · Bluetooth® Specification / BLUETOOTH® VERSION: Bluetooth Specification Version 5.2. A version alone does not establish every optional protocol or host feature. Sony UK — WH-CH720N full specifications | Not provided | 5.2 |
Manufacturer passive operation SourcesSony IER-EX15C No source recorded. Sony WH-CH720N Manufacturer specification · General Features / PASSIVE OPERATION: Yes Sony UK — WH-CH720N full specifications | Not provided | Yes |
Bluetooth® Specification — EFFECTIVE RANGE SourcesSony IER-EX15C No source recorded. Sony WH-CH720N Manufacturer specification · Literal manufacturer model-column row: Bluetooth® Specification / EFFECTIVE RANGE: Approx. 10 m Sony UK — WH-CH720N full specifications | Not provided | Approx. 10 m |
Bluetooth® Specification — FREQUENCY RANGE SourcesSony IER-EX15C No source recorded. Sony WH-CH720N Manufacturer specification · Literal manufacturer model-column row: Bluetooth® Specification / FREQUENCY RANGE: 2.4 GHz band (2.400 0 GHz - 2.483 5 GHz) Sony UK — WH-CH720N full specifications | Not provided | 2.4 GHz band (2.400 0 GHz - 2.483 5 GHz) |
Bluetooth® Specification — SUPPORTED CONTENT PROTECTION SourcesSony IER-EX15C No source recorded. Sony WH-CH720N Manufacturer specification · Literal manufacturer model-column row: Bluetooth® Specification / SUPPORTED CONTENT PROTECTION: SCMS-T Sony UK — WH-CH720N full specifications | Not provided | SCMS-T |
General Features — MAGNET SourcesSony IER-EX15C Manufacturer specification · Literal manufacturer model-column row: General Features / MAGNET: High power neodymium magnets Sony UK — IER-EX15C full specificationsSony WH-CH720N No source recorded. | High power neodymium magnets | Not provided |
Manufacturer frequency-response declaration SourcesSony IER-EX15C No source recorded. Sony WH-CH720N Manufacturer specification · General Features / FREQUENCY RESPONSE: 7 Hz - 20 000 Hz (JEITA) Sony UK — WH-CH720N full specifications | Not provided | 7 Hz - 20 000 Hz (JEITA) |
Bluetooth frequency-response conditions SourcesSony IER-EX15C No source recorded. Sony WH-CH720N Manufacturer specification · General Features / FREQUENCY RESPONSE(BLUETOOTH® COMMUNICATION): 20 Hz - 20 000 Hz (Sampling frequency 44.1 kHz) Sony UK — WH-CH720N full specifications | Not provided | 20 Hz - 20 000 Hz (Sampling frequency 44.1 kHz) |
Manufacturer driver construction SourcesSony IER-EX15C No source recorded. Sony WH-CH720N Manufacturer specification · General Features / DRIVER UNIT: Dynamic, 30 mm Sony UK — WH-CH720N full specifications | Not provided | Dynamic, 30 mm |
Manufacturer impedance and operating states SourcesSony IER-EX15C No source recorded. Sony WH-CH720N Manufacturer specification · General Features / IMPEDANCE (OHM): 325 ohms (1 kHz) (when connecting via the headphone cable with the unit turned on) , 31 ohms (1 kHz) (when connecting via the headphone cable with the unit turned off) Sony UK — WH-CH720N full specifications | Not provided | 325 ohms (1 kHz) (when connecting via the headphone cable with the unit turned on), 31 ohms (1 kHz) (when connecting via the headphone cable with the unit turned off) |
Manufacturer sensitivity and reference SourcesSony IER-EX15C No source recorded. Sony WH-CH720N Manufacturer specification · General Features / SENSITIVITIES (DB/MW): 108 dB / mW (when connecting via the headphone cable with the unit turned on) , 99 dB / mW (when connecting via the headphone cable with the unit turned off). Preserve the manufacturer’s dB/mW reference; no dB/V or independent measurement is substituted. Sony UK — WH-CH720N full specifications | Not provided | 108 dB / mW (when connecting via the headphone cable with the unit turned on), 99 dB / mW (when connecting via the headphone cable with the unit turned off) |
General Features — FREQUENCY RESPONSE (ACTIVE OPERATION) SourcesSony IER-EX15C No source recorded. Sony WH-CH720N Manufacturer specification · Literal manufacturer model-column row: General Features / FREQUENCY RESPONSE (ACTIVE OPERATION): 7 Hz - 20 000 Hz (JEITA) Sony UK — WH-CH720N full specifications | Not provided | 7 Hz - 20 000 Hz (JEITA) |
General Features — DSEE SourcesSony IER-EX15C No source recorded. Sony WH-CH720N Manufacturer specification · Literal manufacturer model-column row: General Features / DSEE: Yes Sony UK — WH-CH720N full specifications | Not provided | Yes |
Microphone SourcesSony IER-EX15C Manufacturer specification · General Features / DIRECTION OF MICROPHONE: Omni directional Sony UK — IER-EX15C full specificationsSony WH-CH720N Not listed by the manufacturer in the captured full model specifications and exact-variant declarations. · Manufacturer specification Sony UK — WH-CH720N full specifications | Yes | Not listed by the manufacturer |
Active noise cancellation SourcesSony IER-EX15C Not listed by the manufacturer in the captured full model specifications and exact-variant declarations. · Manufacturer specification Sony UK — IER-EX15C full specificationsSony WH-CH720N Manufacturer specification · Noise Cancelling with Dual Noise Sensor technology and the Integrated Processor V1 Sony UK — exact WHCH720NB.CE7 identity and image declaration | Not listed by the manufacturer | Yes |
Manufacturer microphone direction SourcesSony IER-EX15C Manufacturer specification · General Features / DIRECTION OF MICROPHONE: Omni directional Sony UK — IER-EX15C full specificationsSony WH-CH720N No source recorded. | Omni directional | Not provided |
General Features — AMBIENT SOUND MODE SourcesSony IER-EX15C No source recorded. Sony WH-CH720N Manufacturer specification · Literal manufacturer model-column row: General Features / AMBIENT SOUND MODE: Yes Sony UK — WH-CH720N full specifications | Not provided | Yes |
Noise Cancelling — AMBIENT SOUND MODE SourcesSony IER-EX15C No source recorded. Sony WH-CH720N Manufacturer specification · Literal manufacturer model-column row: Noise Cancelling / AMBIENT SOUND MODE: Yes Sony UK — WH-CH720N full specifications | Not provided | Yes |
General Features — VOLUME CONTROL SourcesSony IER-EX15C Manufacturer specification · Literal manufacturer model-column row: General Features / VOLUME CONTROL: Yes Sony UK — IER-EX15C full specificationsSony WH-CH720N Manufacturer specification · Literal manufacturer model-column row: General Features / VOLUME CONTROL: Yes Sony UK — WH-CH720N full specifications | Yes | Yes |
Summary — WHAT'S IN THE BOXDifferent SourcesSony IER-EX15C Manufacturer specification · Literal manufacturer model-column row: Summary / WHAT'S IN THE BOX: Cable adjuster Hybrid silicone rubber earbuds Operating Instructions Warranty Card Sony UK — IER-EX15C full specificationsSony WH-CH720N Manufacturer specification · Literal manufacturer model-column row: Summary / WHAT'S IN THE BOX: Connection Cable USB Cable Sony UK — WH-CH720N full specifications | Cable adjuster Hybrid silicone rubber earbuds Operating Instructions Warranty Card | Connection Cable USB Cable |
Unqualified nominal impedance SourcesSony IER-EX15C No source recorded. Sony WH-CH720N The source does not supply one unqualified nominal impedance. Its operating-state declarations remain separately available. · Manufacturer specification Sony UK — WH-CH720N full specifications | Not provided | Not listed by the manufacturer |
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Closest headphones to this pair by shared key specifications. Not a popularity ranking.
Each record represents an explicitly checked model and configuration. Original import: 5 Sept 2026; this is not its verification date. This is not a list of current offers or a popularity ranking.
