With this pair of HB-800 V3.0+EDR Head-mounted Handsfree Wireless Bluetooth Stereo Sporty Headsets， you can enjoy beautiful music handsfree when having sports. The pair of professional headsets is designed to make calls very clear. The adjustable teach wearing and super soft ear pads make it more comfortable to wear. Full control on the headphones easily adjusts the volume， skip the program， and switch between calls and music. This pair of headphones is great for wireless online chat， compatible with all features of Bluetooth headsets. Come to order one now!                                    Features             Handsfree design and freedom call<br> Let your network anytime， anywhere to keep clear， easy to use and fast<br> Wireless transmission distance transmission distance of 10 meters<br> Answer， reject， hang up and redial a button to complete and the volume can be adjusted<br> Provide excellent， shocking and stereo tone quality   <br>                                                            Specifications             Material     Plastic    <br> Weight     1.23 oz / 35 g    <br> Color     Green & White    <br> Dimensions     (6.5 x 5.12 x 0.59) " / (16.5 x 13 x 1.5) cm (L x W x H)    <br> Bluetooth     V3.0+EDR    <br> Charging Voltage     Micro USB 5V    <br> Working Current     25 - 30mA    <br> Bluetooth Working Range     10M    <br> Output Power     2x20mW    <br> Frequency Range     2.401 - 2.480GHz    <br> Distortion Factor     ≤1%    <br> Frequency Response     20Hz - 20KHz    <br> Working Time     Music State 7 Hours    <br> Charging Time     2 - 3 Hours    <br> SNR     S/N≥95    <br> Bluetooth Name     HB-800    <br> USB Charging Cable     17.52 " / 44.5 cm     <br>                                                             Package Includes            1 x Wireless Bluetooth Headphone<br>1 x USB Cable<br>1 x User Manual<br>