4-Mic & AI Noise Cancellation. Adaptive Hybrid ANC. Hidden Mic Boom. Foldable Design for Easy Portability. Brilliant Audio Quality. Compatible with various manufacturer's phones and UC platforms. Yealink BH78 is a Bluetooth ANC headset featuring Adaptive Hybrid ANC, AI-powered noise cancellation, and Yealink CloudSoft Comfort technology, helping you stay focused, heard, and comfortable wherever you work.. Performance. Product type. Headset. Wearing style. Head-band. Recommended usage. Calls/Music. Market segment. Consumer. Headset type. Binaural. Product colour. Black. Operating keys. Volume -, Volume +, Play/Pause, Answer/end call, Mute, ANC control. Volume control. Button. Control unit type. On-ear control unit. Control type. Buttons. LED indicators. Yes. On/off switch. Yes. Country of origin. China. Ports & interfaces. Connectivity technology. Wired & Wireless. USB connector. USB Type-C / USB Type-A. Bluetooth. Yes. Bluetooth version. 5.3. Wireless range. 50 m. Headphones. Ear coupling. Circumaural. Headphone frequency. 20 - 20000 Hz. Headphone sensitivity. 112.5 dB. Driver unit. 3.5 cm. Noise canceling. Yes. Noise canceling type. Active. Microphone. Microphone type. Boom. Microphone frequency. 100 - 10000 Hz. Number of microphones. 6. Battery. Battery operated. Yes. Battery type. Built-in battery. Battery technology. Lithium-Ion (Li-Ion). Battery capacity. 850 mAh. Continuous audio playback time. 120 h. Talk time (ANC off). 38 h. Talk time (ANC on). 27 h. Battery recharge time. 2.16 h. Standby time. 504 h. Weight & dimensions. Weight. 245 g. Packaging data. Package width. 265 mm. Package depth. 217 mm. Package height. 65 mm. Package weight. 917 g. Package type. Box. Packaging content. Charging stand. Yes. AC adapter included. Yes. Carrying case. Yes. Cables included. USB Type-C, Audio (3.5mm). Power. USB Type-C charging port. Yes. Quick Start Guide. leaflet

Retailer feed snapshot. Not live-checked or automatically refreshed. Confirm delivery, stock and final price at the retailer.