The newest Mini Wireless Stereo Bluetooth Headphone For Smart Phone Laptop, Mini Earbud Headsets for iPhone 5 5S 6 6S Samsung Galaxy S6 S7 Note 5 Android Laptop iPad Tablet (Tan). Build-in Micphone,easy free Talk,Make your hands free. Effective range:up to 10 metres. Lasting Talk Time:Up to 3 hours. Standby time:up 100 hours. Super Mini Size,Diameter is about 22mm.