Bluetooth Headset with Noise-Cancelling Microphone, Wireless Headphone, Pack of 2 Y911801

VT9603 Bluetooth Headset VT Bluetooth Headsets series allow 30 meters of wireless range. This headset can be connected up to 2 devices to ensure mobility and flexibility indoors and outdoors. This series headset is a good choice to multitask and increase productivity. Technical Specifications&Instruction Wideband audio for exceptional sound quality. Volume and mute controls Call control: Multi-function button supports answer/end calls for cellphones Advanced hearing protection with safetone. Microphone with Environment Noise Cancelling Wireless Range: up to 30m BT frequency:2.4GHz-2.480GHz Receiver sensitivity:＜-92dBm Battery feature :Lithium Ion-polymer, 300 mAh, typical Battery charging time: Less than 60 minutes to charge 20%, less than 90 minutes to charge 50%, Fully charged in less than 3.5 hours. Visual indicators: LED indicates call status, pairing status. Charging :Use USB cable to charge Power on: Press Multi-function button 3s to turn on the headset and blue light flashes four times (300ms on,300ms off ) Power off :Press Multi-function button 3s to turn off the headset and red light flashes once (2s) Pairing mode:Press Multi-function button 6s+ , then blue light and red light flash alternately (red light on 750ms, blue light on 750ms) Pairing successfully:Blue light flashes (300ms on,8s off) Answer a call or play music:Blue light flashes (300ms on,8s off) Charging:Red light on Fully Charged:Blue light on