?Are you looking for a light£¬mini and fashionable headphone when running.The Wireless Stereo Bluetooth 4.1 headphone is your top choice!?Mini£¬ light-weight sweatproof design£¬ with functions of noise isolation and echo cancellation£¬ one button with multifunctions£¬?the Stereo headphone helps you enojoy your running perfectly£¡What's more£¬ Flexible neck-strap and magnetism design is comfortable and easy to carry and custody. <br> <br> <strong>Features:</strong> <br> With Bluetooth 4.1£¬ noise isolation and echo cancellation technology for perfect sound quality.? <br> 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> Bluetooth 4.1 provides strong signal to make sure a ?clear transmission. <br> 10m transmission distance without obstacles. <br> Supports connecting two devices simultaneously. <br> <span style="line-height: 20.8px;">Supports Voice Prompt.</span> <br> Sweatproof design is perfect for sports. <br> Flexible neck-strap£¬ lightweight and comfortable and easy to carry and custody. <br> Magnetism design behind earphone is convenient to carry preventing from falling down. <br> It is perfectly suitable for sports£¬ music and games etc. <br> <br> <strong>Specifications:</strong> <br> Brand: BOAS? <br> Model: LC-999 <br> Type: In-Ear <br> Bluetooth Version: 4.1 + EDR <br> Bluetooth Profile: Support A2DP1.2£¬ AVRCP1.0£¬ HFP1.5£¬ HSP1.0 <br> RF Range: 10m (free space)? <br> Frequency Response:80Hz-20KHz <br> Loudspeaker Output: 10mW <br> Signal-To-Noise: &gt;=80dB <br> Distortion: &lt;=5.0% <br> Playback Time: about 10 hours <br> Charging Time: about 2.5 hours <br> Color: Light Blue/ Black/ Red ?(Optional) ?? <br> Headphone Weight: 12g / 0.45oz <br> Cable Length: Approx.61cm/ 24in <br> Package Size: Approx.21.8 * 12 * 4.4cm / 8.58 * 4.72 * 1.73in ? ? ? ? ? ? ? ? ? ? ? ? <br> Package Weight: Approx 70g / 2.5oz <br> <br> <strong>Package List:?</strong> <br> 1 * Bluetooth Headset? <br> 1 * USB Cable <br> 3 * Pairs of Ear Buds <br> 1 * Pairs of Ear Hooks <br> 1 * User Manual? <span style="line-height: 20.8px;">(English)</span>