This wireless stereo Bluetooth 4.1 headphone is light・ invisible and fashionable. With the <br />Features of Bluetooth 4.1 Technology・ built-in high-grade microphone & speaker・ hands-free calling function and lightweight design・ it's convenient for you to listen music and answer calls while doing sports or driving. A great companion for your daily life・ office time・ driving or travel.  <br /><br />Features:<br />[Bluetooth Connection] Bluetooth 4.1 technology ensures strong signal and fast transmission・ and offers high-fidelity stereo music. Compatible with iOS / Android / Windows Smart phones and other Bluetooth-enabled devices.<br />[Lightweight and Invisible] The Bluetooth headset with 4g lightweight・ super mini size and ultra-soft earcap provide you long time wearing comfort・ and guarantee 100% stable. Easy to use and custody.<br />[Built-in High-quality Microphone] High-sensitivity microphone grasps the detail of voice・ ide al for in-car calling or working use. Integrated Multi-point Technology enables you to switch between your business and personal phones.<br />[Duration Time] Built-in rechargeable 60mAh Lithium battery lasts up to 10 hours of talking time or 6 hours of music playing time and 480 hours of Standby Time on one full charge.   <br />[Easy Operation] Simple operation・ easily control playing / pausing・ answering / ending an incoming call and redialing the last number. With voice prompt function・ very convenient to use.<br /><br />Specifications:<b