ZS903 Wireless Bluetooth Headphone brings you perfect music enjoyment. With 4.0 technology and high-quality microphone， the headset presents the purest sound quality forclear communication and high definition music. What&#39;s more， IPX 7 Waterproof design allows you to enjoy music during sports or other occasion. Technical ergonomics is design for comfort. Comfortable wearing and no dropping.<br style="line-height: 20.8px;" /><br style="line-height: 20.8px;" /><strong style="line-height: 20.8px;">Features:<br style="line-height: 20.8px;" /><strong style="line-height: 20.8px;">[Bluetooth 4.0 Technology &amp; Strong Compatibility]<br style="line-height: 20.8px;" />Bluetooth 4.0 technology is perfectly paired with almost all Bluetooth-enabled mobile devices such as， for iPhone SE 6 6Plus， for Samsung Galaxy S7 / Edge， Tablet PC， Laptop， etc.<br style="line-height: 20.8px;" /><strong style="line-height: 20.8px;">[Excellent Sound Quality &amp; CVC6.0 Noise Reduction]<br style="line-height: 20.8px;" />With CVC6.0 noise reduction technology， It delivers high definition stereo and surround sound quality when picking up calls or listening to music cutting off ambient noise. Purest and clear sound will present to you at once.<br style="line-height: 20.8px;" /><strong style="line-height: 20.8px;">[Multi-point Connection &amp; Hands-free Call]<br style="line-height: 20.8px;" />It can connect two smarts phones at the same time so that you cannot miss any calls. Built-in HD microphones， hands-free function brings much convenient and makes sure safety when driving or sporting without hands.<br style="line-height: 20.8px;" /><strong style="line-height: 20.8px;">[Duration Time]<br style="line-height: 20.8px;" />With built-in 80 mAh capacity， it provides up to 7 hours of working time， up to 6 hours of music time and the standby time can last to 160 hours. No worry about low power when you are outside.<br style="line-height: 20.8px;" />[Ergonomics Design &amp; IPX 7 Waterproof Design]<br style="line-height: 20.8px;" />Technical ergonomics is design for comfort. Comfortable wearing and no dropping. IPX 7 Waterproof design allows you to enjoy music during sports or other occasion， preventing sweat from being spoiled.<br style="line-height: 20.8px;" /><br style="line-height: 20.8px;" /><strong style="line-height: 20.8px;">Specification:<br style="line-height: 20.8px;" />Bluetooth Version: Bluetooth version V4.0<br style="line-height: 20.8px;" />Bluetooth Profile: HSP， HFP， A2DP， AVRCP<br style="line-height: 20.8px;" />Working Distance: 10m<br style="line-height: 20.8px;" />Frequency Response: 2.400GHz-2.480Ghz<br style="line-height: 20.8px;" />Sensitivity: &gt;80 db<br style="line-height: 20.8px;" />Impedance: 16 ohm<br style="line-height: 20.8px;" />Distortion: 0.1%<br style="line-height: 20.8px;" />Charging Time: about 2 hours<br style="line-height: 20.8px;" />Talking time: about up to 7 hours<br style="line-height: 20.8px;" />Music Time: about 6 hours<br style="line-height: 20.8px;" />Standby Time: up to 160 hours   <br style="line-height: 20.8px;" />Battery: 80 MA<br style="line-height: 20.8px;" />Charging Voltage: 5V / 1A<br style="line-height: 20.8px;" />Color: Black， White (Optional)<br style="line-height: 20.8px;" />Cable length: Approx. 21cm / 8.27in<br style="line-height: 20.8px;" />Item Weight: Approx. 26g / 0.91oz<br style="line-height: 20.8px;" />Package Size: Approx. 16 * 8.9 * 3.5cm / 6.30 * 3.50 * 1.38in<br style="line-height: 20.8px;" />Package Weight: Approx. 85g / 3.00oz<br style="line-height: 20.8px;" /><br style="line-height: 20.8px;" /><strong style="line-height: 20.8px;">Package List:<br style="line-height: 20.8px;" />1 * Headphone<br style="line-height: 20.8px;" />2 * Pairs of Ear buds<br style="line-height: 20.8px;" />1 * Charging Cable<br style="line-height: 20.8px;" />1 * User Manual<br><img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/V/B/V2427B/V2427B-1-8a32-QynV.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/V/B/V2427B/V2427B-1-8a32-wVZd.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/V/B/V2427B/V2427B-1-8a32-G3gs.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/V/B/V2427B/V2427B-1-8a32-ykMZ.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/V/B/V2427B/V2427B-1-8a32-twDy.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/V/B/V2427B/V2427B-1-8a32-sdB8.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/V/B/V2427B/V2427B-1-8a32-DVFP.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/V/B/V2427B/V2427B-1-8a32-hKbI.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/V/B/V2427B/V2427B-1-8a32-lQU1.jpg" /><br>$$<img src="//agdetail.image-gmkt.com/073/310/829310073/img/img.tomtop.com/product/xy/2000/2000/p/gu1/V/B/V2427B/V2427B-1-8a32-218s.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/V/B/V2427B/V2427B-1-8a32-qTxB.jpg" /><br>