The perfect combination of technology and fashion. Streamline design Xwatch 03 features cut and curvy design that fit cozily with your wrist and bring you the best performance. Easy for Life Two buttons function for the phone calls and music, easy to control your xwatch o3 and smart your life Watch Out for the Smart Technology Pair the Xwatch03 with your phone by bluetooth, answer your phone calls with your Xwatch03 and share your music on your hand -- experience the convenience of smart technology. Fashion on your Hand Colorful shell and fashionable shape makes you the focus in the crowds and enlighten your mind with one Xwatch03. Display: Screen Size: 1inch Resolution: 128x32 Language: English Battery: Recharge Type: Adapter or USB Cable Battery Type: Rechargeable Lithium Battery Capacity: 130mAh lithium battery Bluetooth: Version: Bluetooth 2.1 technology Working voltage: 3.6V-4.2V Working Current: 45 mAh Working Frequency: 2.4 GHz Duration of charging: 2-3 hours I/O: USB: point-contact Charger Type: 110V-220V Input,5V,DC 0.5A Output Mic & speaker: Inside Others: Dimensions: 60*37*13mm Weight: 45g Streamline Design Fashion Forward