Rotibox always focus on Innovation and Quality. Any query, please contact us freely,we will resolve it ASAP. </br> </br><b>Specifications: </b> </br>Bluetooth Version: V4.1+EDR </br>Size: one size fits most </br>Material: 100% Acrylic </br>Dimension: 10.2x8.7x1 inch </br>Weight: 3.7 oz </br>Frequency: 2.402GHz-2.480Ghz </br>Transmission Distance: 10m/33feet </br>Battery: 3.7V/120mA li-polymer </br>Play time: 8~10 hours </br>Standby Time: up to 60 hours </br>Charging time: 1~2 hours </br>Speaker Rates: 10mw x 2 </br> </br><b>Compatible With:For most Bluetooth-enabled devices </br> </br><b>What's included: </b> </br>1 X Bluetooth Beanie </br>1 X Micro USB charge cable </br>1 X User manual </br> </br><b> Note: </b> </br>1.Before you start using the bluetooth beanie,please use the USB cable to charge it first. </br>2.Pairing:press the ON/OFF button of the control panel,you will see the BLUE-RED light blinking,it will automatically enter pairing mode. </br>3.Make sure you turned on the bluetooth on your phone,search headset model on it. </br>4.Select the Bluetooth model and click to connect. Enter the password or code 0000 if needed. </br> </br>Love it, just try it. </br>Rotibox will devote ourselves to making our products meet customers' expectation.