Elegant， compact and practical， this HV-801 Neck-hang Style V4.0 Bluetooth Sports Headset with Hands-free Function is a good choice especially for sports. It features remarkable sound， elegant appearance and compact size. Adopting superb Bluetooth smart chip， this headset ensures stable Bluetooth receiving. Besides， with fine noise reduction technology， it can protect your health against radiance. Designed into neck-hang style， it conforms to ergonomic principle for comfortable wear. What is more， with hands-free function， you can answer or reject incoming call just press the button easily without stopping music.                                    Features             With Bluetooth and hands-free functions<br> Stable Bluetooth receiving <br> Allow you to answer phone calls freely with hands-free function<br> Supplied with a 3.5mm cable that you can use to connect the headphone to devices without Bluetooth<br> Long standby time， talking time and music time <br> 10m transmission distance is workable  <br> With a USB cable for easily charging or transmission  <br>                                                            Specifications             Model     HV-801     <br> Working Current     25-30mA    <br> Frequency Response     20-20，000Hz    <br> Frequency Range     2.401-2.480GHz    <br> Charging Voltage     Micro USB 5V    <br> Bluetooth Version     V4.0    <br> Bluetooth Working Range     10m    <br> Output Power     2 x 20mW    <br> Charging Time     2-3h    <br> Music Playing Time     6h    <br> Distortion Factor     ≤1%    <br> SNR     ≥95    <br> Material     PC    <br> Weight     1.02 oz / 29 g    <br> Color     White    <br> Dimensions     (6.69 x 5.71 x 0.59) " / (17 x 14.5 x 1.5) cm (L x W x H)     <br>                                                             Package Includes            1 x Bluetooth Sports Headset<br>1 x USB Cable<br>1 x User Manual<br>