•Uniquely designed retractable hidden microphone arm with magnetic slide allows you to enjoy music more simply and can easily adapt to various outdoor activities
•Multiple Microphones With Yealink Acoustic Shield Technology - Dual microphones block the background noise automatically but ensure the user's voice can be heard clearly
•Unparalleled Music and Calling Experience - Designed for music and calls, BH72 supports dynamic EQ to automatically switch between call mode and music mode
•Visible Busylight for Ultra-wide Angle - Visibility indicators built-in in both sides of the BH72 automatically glow red when you make a call or attend a meeting, reducing external interference
•Multi-functional Wireless Charging - Its long battery life offers up to 35 hours talking time, saving users from searching for a charger
•Angled ear cushion design and oval memory foam isolate the ambient noise, bringing excellent passive noise reduction and creating the best listening experience

•Battery: Talking time - up to 35 hours; Music time - up to 40 hours; Standby time - 112 hours; Charging Time - within 2 hours (cable) / within 3 hours (wireless charging)
•Speaker Size: 35 mm Ø
•Speaker Sensitivity: 117 dB @1 mW-1k Hz
•Speaker Max Input Power: 50 mW
•Speaker Frequency Range: 20 Hz-20k Hz
•Microphone Sensitivity: -15.66 dBFS/Pa
•Microphone Frequency Range: 100 Hz-8k Hz; SBC
•User Hearing Protection: EN50332
•Connection (computer and mobile devices): USB-A Bluetooth adapter, Bluetooth 5.2
•Operating Range: Up to 30m/100ft
•Bluetooth Profiles: HSP v1.2 , HFP v1.7, A2DP v1.3, AVRCP v1.6, PBAP v1.1, SPP v1.2

•1 x BH72 Bluetooth Headset
•1 x USB-A Dongle (BT51-A )
•1 x 1.2-meter USB 2.0 USB-A to USB-C Cable
•1 x Drawstring Bag Black for Headset
•Quick Start Guide