The Yealink BH71 Workstation Mono Bluetooth Wireless Headset is a Microsoft certified Teams headset with HD audio quality whenever and wherever you need it. Be heard clearly thanks to beamforming noise cancelling technology with a 4-mic array. With Bluetooth, Adjustable, retractable ear hook, 10 hours of battery life, Easy and comfortable to wear, Range: up to 30 m, Workstation: 7.62 cm (3") colour touchscreen Speakerphone 3 x USB 3.0 ports USB-C port for PC connectivity Micro USB port for desk phone connectivity Qi wireless charging for smartphones. Includes: BHM711 Headset Ear tips AC adapter Micro USB 2.0 cable USB-C 3.0 cable BHB710 Station Quick start guide