RETRACTABLE HIDDEN MICROPHONE ARM Move seamlessly from the office to the on-the-go, with a contemporary casual design and a discretely hidden boom arm that still gives exceptional professional sounding calls, even when tucked away. So when you're on the go, only you'll know you're working. Compatibility List for Voip Phone, Soft Phone, PC and Mobile Phone Yealink Voip Phone Yealink T5 Series Phones: T53/T53W/T54W/T57W/VP59/T53C/T58V Yealink T4 Series Phones: T41S/T42S/T46S/T42U/T43U/T46U/T48U Yealink Skype for Business phone(SFB): SFB-MP58 Yealink Teams Phone: Teams-MP58/Teams-VP59/Teams-T56A Soft Phone: Ume/Yealink Meeting(Compatibled OS: WIN10/MAC/Windows10 1903/ ) CounterPath: Bria/ 3CX: Web Client/ Broadsoft: UC-One/ Google: Google Meeting/ Zoiper: Zoiper5 PC and Mobile Phone Windows 8 or higher MAC 10.14.6 or higher iOS 13.0 or higher Android 6.0.1 or higher How The BH72 Compares Charging Time (cable): within 2 hoursCharging Time (wireless charging): within 3 hoursBluetooth version: Bluetooth 5.2Operating range: Up to 30m/Up to 100ftBluetooth pairing list: Up to 8 devicesSimultaneous Bluetooth connections: 2 Package contents: BH72 Bluetooth HeadsetWireless Charging StandBT51-A USB Dongle1.2M USB2.0 USB-A to USB-C CableDrawstring Bag Black for HeadsetQuick Start Guide Good For Music, GREAT For Calls Designed for music and calls, BH72 supports dynamic EQ to automatically switch between call mode and music mode. Designed with the new angled ear cushion design and oval memory foam isolate the ambient noise. Using industry-leading professional acoustic component—the Ole Wolff diaphragm, which provides a wider frequency response and higher sensitivity of music, enabling everyone to enjoy the full sound of originalities and fineness. With Yealink Acoustic Shield Technology, the two microphones built into the BH72 block the background noise automatically but ensure participant voice be heard clearly, greatly boosting communication efficiency. Multi-functional Wireless Charging BH72 bluetooth headset's long battery life offers up to 35 hours talking time, saving users from searching for a charger. The optional Qi charging stand for the BH72 provides easy charging whilst while keeping the device on the desk. This same charger works for any device that supports Qi – like a mobile 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. Focus on the conversation. Noise Canceling Microphone Specially tailored noise-cancellation microphones, placed in retractable Magic Boom, together with beamforming, gets your message across completely even in noisy environments with clear and crisp voice transferred. Your words will never be late or lost! Uncompromising Comfort Ergonomics & human caring factors are the soul of the BH72 headset. So biometric research of hundreds of heads and wearing styles were done to create a perfect headset fitting every size and shape, ensuring your comfort till the last minute even in long-time working.