Black · UK catalogue
Sony’s Black WH-CH730N is a foldable, active noise-cancelling over-ear headphone with Bluetooth and analogue listening. The manufacturer states approximately 207 g and up to 50 hours of AAC or SBC music playback with noise cancelling enabled.
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Specifications checked 17 Oct 2026Manufacturer specifications, not a hands-on test.
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The exact guide retains separate playback limits for its stated connection and processing modes.
The headset is not waterproof; LC3 playback has lower published battery maxima than AAC or SBC.
Manufacturer battery maxima depend on the documented mode and usage conditions; they are not results from a matched independent listening test.
Exact configuration: Black · WH-CH730N · UK catalogue
15 specifications in 4 groups. Values are manufacturer specifications unless a row says “Measured result” or “Calculated from cited specifications”.
The exact model is worn over the ears. Closed dynamic construction is stated only for INZONE H9 II in its exact UK specification table; no construction negative is inferred for WH-CH730N.
SourceApproximately; the exact WH-CH730N/WH-CH735N model guide and UK WH-CH730N page state 207 g. No other model mass or cable-inclusive basis is substituted.
SourceThe exact model guide expressly states that the headset is not waterproof. This is a documented manufacturer limitation.
SourceThe exact UK WH-CH730N product page positively describes a foldable structure; no hinge durability or packed dimensions are inferred.
SourceOnly positively documented audio connections are listed. A charging USB connector is not represented as USB audio. Analogue listening uses the supplied headphone cable. Numbered Bluetooth version remains separately unverified.
SourceManufacturer full-charge Bluetooth music-playback maxima. Equalizer, DSEE, Service Link and other changes from default settings shorten runtime; combining settings can shorten it further. Calls and powered analogue use have separate 35-hour active or 40-hour inactive limits.
SourceBuilt-in lithium-ion batteries are explicitly named. The operating voltage is not converted into a capacity; user replaceability is not inferred.
SourceApproximately; actual charging time varies with conditions of use.
SourceThe retained exact-model specification does not establish a battery capacity in mAh. Operating voltage and playback endurance do not establish this quantity.
SourceWireless charging is not established in the retained exact-model evidence; documented USB charging does not establish absence.
SourceSBC and AAC are positively listed for Classic Audio; LC3 requires compatible LE Audio. Unlisted codecs are not marked unsupported.
SourceThe exact retained specification states Bluetooth without a numbered version; no version is inferred from LE Audio, supported codecs or another model.
SourceThe exact guide positively names a noise-cancelling headset and documents its active noise-cancelling mode. Presence is not an independently measured attenuation result.
SourceThe exact model guide documents voice pickup and call or chat controls; microphone noise filtering does not establish measured attenuation or call quality.
SourceSoftware functions depend on device, connection and settings. The guide and current UK product page name Sound Connect.
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