Get double benefit by wearing our S301 Universal High Quality Stereo Sports Wireless Bluetooth 4.0 Headset! The Bluetooth headset is designed to offer you amazing music when you are having sports. Its advanced chip brings you amazing loss-free sound quality. You can apply it to various kinds of electronic devices， such as smartphones， tablet PCs and so on. Ergonomic and comfortable to wear， our Bluetooth headset allows you to get wonderful melodies and hands-free function freely. Never let such a good product go!                                    Features             Adopt guaranteed materials and support music function<br> Compact and offer you amazing music when you are having sports<br> Let you experience superb stereo audio quality<br> Comfortable to wear， it allows you to have clear sound transmission without ambient noise and keep incoming communication private<br> Advanced technology in echo cancellation & noise reduction ensures exceptional sound quality<br> Support Bluetooth and hands-free function<br> Offer you about 8 hours talk time and 80 hours stand-by time <br>                                                            Specifications             Supporting Edition     Bluetooth 4.0    <br> Frequency Range     20-20，000Hz    <br> Sensitivity     105dB    <br> Impedance     32 Ohms    <br> Transmission Distance     10m    <br> Calling Time     ≥8 hours    <br> Standby Time     80 hours    <br> Charge Time     3-4 hours    <br> Dimensions     (1.18 x 0.59 x 0.98)" / (3 x 1.5 x 2.5)cm (L x W x H)    <br> Weight     0.35oz / 10g    <br> Color     Black     <br>                                                             Package Includes            1 x Bluetooth Wireless Headset<br>1 x USB Cable<br>4 x Ear Plug<br>1 x Ear Hook<br>1 x Manual<br>