Sony WH-CH720N Black: Lightweight ANC and 35-Hour Battery

The Sony WH-CH720N in black is an over-ear noise-canceling headphone for buyers who want long battery life and everyday comfort without stepping up to Sony’s premium 1000X line. This article covers Amazon US child ASIN B0BS1QCFHX and Sony model WH-CH720N/B in black, not the white or pink variants.

The strongest buying case is the combination of low weight, active noise canceling, and practical battery life. Sony lists the headset at about 6.8 ounces, gives it Dual Noise Sensor technology with the Integrated Processor V1, and rates music playback at up to 35 hours with noise canceling on or 50 hours with it off. Multipoint support also lets it stay connected to two devices at once.

The 6.8-ounce design makes long sessions easier

Sony calls the WH-CH720N its lightest wireless noise-canceling headband, and the published weight is about 192 grams, or 6.8 ounces. That matters more in daily use than a long feature list. A lighter over-ear headset puts less mass on your head during a commute, work session, flight, or several hours at a desk.

The closed-back, over-ear design uses a 30 mm dynamic driver, and Sony includes a detachable stereo mini cable as well as a USB charging cable. Wired playback is useful when Bluetooth is inconvenient or when a source device already has a headphone jack. The package list does not include a carrying case, so frequent travelers who want rigid protection should plan for that separately.

Noise canceling and Ambient Sound cover two commuting needs

The WH-CH720N uses two microphones in each earcup with Sony’s Dual Noise Sensor system and Integrated Processor V1 for active noise canceling. The opposite mode is just as useful: Ambient Sound lets outside sound back in, and the Sony Sound Connect app can adjust ambient sound across 20 levels. Focus on Voice can make conversation easier without removing the headphones.

That combination makes the headset more flexible than a model that only offers “ANC on” and “ANC off.” You can reduce background noise on a train or plane, then switch toward awareness when walking, waiting for an announcement, or talking to someone nearby. Sony also supports Adaptive Sound Control, which can change ambient settings based on activity and location.

Thirty-five hours with ANC is the useful battery number

Sony rates continuous music playback at up to 35 hours with noise canceling on and up to 50 hours with it off. A full charge takes about 3.5 hours. For a quick top-up, Sony’s help guide says three minutes of charging can provide about 60 minutes of music playback, while ten minutes can provide about 4.5 hours.

Those are manufacturer maximums, so actual runtime depends on settings and conditions. Sony notes that features such as equalizer, DSEE, noise canceling, Ambient Sound, and voice-assistant activation can reduce available battery time. Even with that caveat, the 35-hour ANC rating gives buyers a clear reason to choose this model for workdays and travel.

Multipoint is practical; codec support is the tradeoff

The WH-CH720N supports Multipoint Connection, so it can pair with two devices at the same time and switch between them as needed. That is useful if you listen from a laptop but still want the headphones ready for calls from a phone. Bluetooth 5.2 is supported, with an effective range of about 30 feet under Sony’s stated conditions.

The main specification tradeoff is codec support: Sony lists SBC and AAC, but not LDAC. Buyers who specifically want Sony’s higher-bitrate LDAC option should compare another model. For everyone else, the black WH-CH720N makes the most sense when low weight, usable ANC, two-device convenience, and long battery life matter more than premium-codec support or a bundled travel case.