Yealink WH66-M-UC UC DECT Mono Wireless Headset Solution - 4" Touchscreen - 5 feature buttons - Connectivity: 2x USB-A 3.0 & 2x Bluetooth (V4.2) devices - Integrated busylight LED indicator - Boom arm adjustable: 320 - Battery: Talk time: up to 13 hours - Standby time: 90 hours - Charging time: 2.5 hours (12V/2A) - Wireless range: up to 160m - Dual microphone: Unidirectional electret microphone & omnidirectional silicon microphone - WH66-M-UC Open Box

Manufacturer Warranty: 12 Months Limited Warranty

Manufacturer Contact Info: http://www.yealink.com/,