?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 4.0 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 is perfectly suitable for jogging£¬ mountain-climbing traveling£¬ hiking and other sports. ? <br><br><strong>O1 Features:?</strong> <strong>?</strong> <br>Strong Compatibility: Compatible with almost all Bluetooth-enabled mobile devices such as£¬ for iPhone6 6Plus 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 4.0£¬ it makes sure high-fidelity sound quality and stable performance.? <br>Built-in high-performance Microphone and Speaker£¬ offering you APT-X HIFI 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 smart phones. So you can seamlessly switch between your business and personal phones. <br>Supports hands-free call and Voice Prompt. <br>Endurance Time: Built in rechargeable Grade A polymer 50mAh battery£¬ it provides up to 3.5 hours of continuous talking time£¬ 4 hours of music time and up to 100 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 jogging£¬ mountain-climbing traveling£¬ hiking and other sports.? <br>? <br><strong>O1 Specifications:?</strong> <br>Model: O1 <br>Bluetooth Version: Bluetooth 4.0+ERD <br>Bluetooth Profile£ºSupports HSP£¬ HFP£¬ A2DP and AVRCP <br>Operation Range: about 10 meters (no space) <br>Frequency Response: 20-20KHz? <br>Distortion: &lt; 0.1% <br>Sensitivity: -54dB¡Â2dB <br>Speaker Diameter: 8mm <br>Mic Impedance: 2.2KOhm <br>High-quality Built-in Rechargeable Li-ion 50mAH battery <br>Talking Time: up to 3.5 hours (The Music Volume will affect the time) <br>Standby Time: 100 hours <br>Music Time: up to 4 hours <br>Charging Time: about 2 hours? <br>Charging Voltage: DC 5V 1A <br>Color: Golden / Black / Green / Grey (Optional) <br>Cable Length: Approx. 56cm / 22.05in <br>Item Weight: Approx. 9g / 0.32in <br>Package Size: Approx. 9 * 7 * 3.4cm / 3.54 * 2.76 * 1.34in <br>Package Weight: Approx. 60g / 2.14oz <br><br><strong>O1 Package List:</strong> <br>1 * Bluetooth Headset <br>1 * Pair of Earmuffs <br>1 * USB Cable <br>1 * Clip <br>1 * User Manual(English)