Product Features:<br /><br />1. The earphone supports smart APP (IOS Android) with double systems : steps・running distance・ burn calories and recording 30 days exercise data. Well-designed for your sports and health. <br /><br />2. Snail bionic design・ ergonomic structure・ comfortable to wear. Light and durable・ easy to carry・ close to your ear type・ suitable for professional running or other strong sports・even not easy to fall. <br /><br />3. Earphone connection・ using the most advanced memory wire・ linear automatic admission・ not easy to be deformed. With accessary mini storage earphone case・ easy to carry. <br /><br />4. Speaker using Graphene technology・ HIFI-quality sound experience. Natural surging bass rhythm is more clear and its in-ear design makes your sports and exercises more energetic and powerful. <br /><br />5. Using advanced Bluetooth V4.0 technology・ supporting next and previous song・ volume up and down・ pause and play・ and microphone phone function・ allow you to be able to change the calling and music easily・ control music more freely and more conveniently when running. <br /><br />6.With nano protective layer on the circuit boards・ New Bee latest sweat-proof technology ・greatly improve the sweat-proof level. <br /><br />Product Specifications: <br /><br />1.Bluetooth version: V4.0 CSR 8635 <br /><br />2.Talking time: 20 hours  <br /><br />3.Music playing time: 17 hours <br /><br />4.Standby time: 60 days <br /><br />5.Charging Voltage: 5V <br /><br />6.Charging time: about 1.5 hours <br /><br />7.Battery capacity: 300mAh  <br /><br />8.Speaker:  10mm    <br /><br />9.Operating distance: 10M  <br /><br />10.RF frequency: 2.402-2.480GHz <br /><br />11.Previous song・next song:  Yes <br /><br />12.Built-in Microphone Answer/hang up calls・ enjoy music・ volume control <br /><br />13 NFC pair:Yes <br /><br />14.Color: Green・ Black・Red <br /><br />15.Charge Jack: USB <br /><br />16. Net Weight: about 28g   <br /><br />17. Gross Weight: about 250g <br /><br />18. Package Size about 16.5 * 9.5 * 6 CM/ 6.50 * 3.74 * 2.36 inches<br /><br />Packing List:<br /><br />1 * Charging Cable <br /><br />1 * User Manual<br /><br />1 * Carabiner<br /><br />1 * Storage bag <br /><br />1 * Earphone cape( 3 pairs of memory sponge・ 3 pairs of silicone earmuffs)<br />