Headphones — Edifier K750W

The K750W is a wireless headset from Edifier, built with a detachable rotating boom microphone for switching between music and call use. Edifier has spent nearly 30 years as an audio brand, and the K750W applies that broader engineering heritage to a versatile office and everyday listening headset rather than a purely music-focused design.

Key specs that matter

Rated response is 20 Hz to 20 000 Hz. Sensitivity for the wired connection is 92 plus-or-minus 3 dB, with an impedance of 32 ohms. Two 40mm dynamic drivers deliver balanced, full-range audio. Playback time reaches up to 55 hours of music or 33 hours of talk time on a single charge, with fast charging for quick top-ups and a 10-minute charge providing significant additional playtime. Bluetooth 5.4 offers faster transmission, improved stability and lower power consumption than earlier standards, with multipoint connection letting a user switch seamlessly between a computer for music and a phone for calls. Dual built-in microphones use AI noise cancellation for clear calls in noisy environments, and a Sidetone feature via the Edifier ConneX app lets a user monitor their own voice in real time, useful for refining pronunciation or checking clarity outside of actual calls. Weight is 178g with memory foam ear cushions for extended comfort.

Sound and use context

Expect balanced, full-range audio with deep bass, clear highs and genuine stereo imaging suited equally to music, calls, movies, webinars and study or work scenarios - the detachable boom mic with foam windscreen lets this headset switch cleanly between a dedicated call-focused configuration and a cleaner music-only profile depending on the task at hand.

Pairing

As a Bluetooth design it needs no separate amplification and pairs directly with any phone or computer, while the Edifier ConneX app allows EQ adjustment, headphone renaming and a find-my-headphones feature for genuine day-to-day convenience.

Alternatives

Edifier's broader over-ear catalogue, including the W820NB Plus Gen 2 with active noise cancellation and a titanium driver, offers an alternative for buyers wanting dedicated ANC rather than this K750W's office-and-call-focused feature set, worth comparing directly if noise cancellation matters more than the detachable boom microphone here. On-ear physical controls also allow quick volume and playback adjustment without needing to reach for a connected device, a practical touch for a headset built around all-day office and study use.