?Exercise is good for the body£¬ but if you listen to music while exercising£¬ you brain will even work better. People not only like listening to music while?exercising£¬ but also don't want to miss any important calls while exercising. With the Wireless Sport Stereo Bluetooth 4.1 Headset£¬ you can enjoy music and pick up?calls with the button of the headset. And its hands-free function can set free your hands from answering the call during exercise. Moreover£¬ this Sport Headset is lightweight and portable£¬ and has a high-grade built-in microphone and speaker which can offer you wonderful?sound quality. It's suitable for driving£¬ business£¬ traveling£¬ ect.? <br><br><strong>K10 Features:</strong>? <br>Strong Compatibility: Compatible with almost all Bluetooth-enabled mobile devices such as£¬ for iPhone6S Plus 5S£¬ for Samsung Galaxy S5 S4 S3 / Note 4 3 2£¬ for HTC One£¬ Tablet PC£¬ Laptop£¬ etc. <br>Super easy and fast paring with your smartphone or other Bluetooth device for high-fidelity stereo music£¬ movies and chatting. <br>Perfect sound Quality£ºWith Bluetooth 4.1£¬ it makes sure high-fidelity sound quality and stable performance.? <br>Built-in high-performance Microphone and Speaker£¬ it offers you stereo sound effect(Perfect sound Quality and clear communication effect.)? <br>Enhanced Audio and Bass Response£¬ Crisp Treble£¬ Natural Alto£¬ Deep Bass. <br>Integrated Multi-point Technology: it can simultaneously connect two smarts phones. So you can seamlessly switch between your business and personal phones. <br>Supports hands-free call£¬ voice prompt and number reporting. <br>Multi-functional Button: Supports answer and end a call with "yes or no". Supports vibration for incoming calls and last number redial. <br>Endurance Time: Built in rechargeable Grade A polymer 55mAh battery£¬ it provides up to 5 hours of continuous talking time£¬ 4-5 hours of music time and up to?500 hours of standby time. <br>Low power consumption£¬ Supports low-battery warning. <br>Suitable Occasion: Its lightweight is comfortable and easy to carry and custody. It's suitable for driving£¬ business£¬ traveling£¬ ect. <br><br><strong>K10 Specifications:?</strong> <br>Model: K10 <br>Bluetooth Version: Bluetooth 4.1 <br>Bluetooth Profile£ºSupports A2DP <br>Transmission Power: Class 2 <br>Operation Range: about 10 meters (no space) <br>Frequency Response: 2.4GHz-2.48GHz <br>Impedance: 32ohm? <br>High-quality Built-in Grade A Rechargeable Li-ion 55mAH battery <br>Talking Time: 5 hours (The Music Volume will affect the time) <br>Standby Time: 500 hours <br>Music Time: 4-5 hours <br>Charging Time: 1-2 hours? <br>Color: Black? <br>Item Size: Approx. 5.3 * 1.2 * 0.8cm / 2.07 * 0.47 * 0.31in <br>Item Weight: Approx. 7g / 0.25oz ?  <br>Package Size: Approx. 11.5 * 8 * 0.1cm / 4.52 * 3.15 * 0.04in <br>Package Weight: Approx. 17g / 0.64oz? <br><br><strong>K10 Package List:</strong> <br>1 * Bluetooth Headset <br>1 * Earmuffs <br>1 * Earhook <br>1 * USB Cable <br>1 * User Manual(English)