Features:<br>1.Intelligent Noise Reduction, Sound Quality Is Clearer.<br>2.Ergonomically Designed Earmuffs Allow You To Move Comfortably No Matter How Strong Your Movements.<br>3.Ideal For Running, Jogging, Hiking, Cycling, Gym, Yoga, Etc.<br>4.Pairing mode: long press, red, blue and fast flash is pairing mode<br>5.Chinese and English voice switching: When the red and blue lights alternately flash, press the power button twice.<br><br>Descriptions:<br>Button function: long press to power on, long press to turn off, click music pause / play / call answer / hang up the phone, double click the next song.<br>Small size and lightweight, portable to carry.<br><br>Specifications:<br>Bluetooth chip and Bluetooth version: Jerry 6909 chip<br>Bluetooth protocol: A2DP AVRCP HFP HSP<br>Battery: 3.7V 90mAh<br>Sensitivity: 103db +/- 3dB<br>Impedance: 32Mw<br>Transmission distance: 10m barrier-free<br>Frequency: 2.4GHZ<br>Talk time: about 1~2 hours<br>Listening to song time: about 2~3 hours<br>Standby time: about 160 hours<br>Color:Blue，Gold，silver，Black<br><br>Package included: <br>1x wireless Bluetooth headset<br><br>Notice:<br>1.All the pictures in our store are 100% taken from the original products. Because of light in different environments, different display screens, and other reasons, probably there will be a little chromatic aberration between picture and product.<br>2.Due to the manual measurement and different measurement methods, please allow1-3cm deviation.Thanks!