Features:*Fashion and casual Smart Wearable Devices， best partner of cell phone (Android version and iPhone version)， anti-lost alert.*Paring with Bluetooth， answer call by a button.*Easy to operate and convenient to wear.*APK， used for reading synced SMS only works for Android phones， can be downloaded through the after sale center of our site.*The bracelet is charged through standard Micro USB input port.*Many people have their phones in their hand bags and don't feel the vibration or even hear their ring tone in busy areas. With this awesome bracelet you can have a wearable fashion accessory and never miss a call again.*Caller ID and LED Time Display， so you can see the phone number of the person calling， instead of having to struggle opening your bag in a busy area， you can instantly tell if the call is important or not.*Another great feature of this bracelet is that it features a time display. Unlike most wireless techniques， bluetooth uses time division duplex to arrange the transmission slots so that it can avoid collision.*The top-rated 250mAh battery enables you run into the bracelet for 168 hours constantly.*Paring with Bluetooth 3.0， start up sport pedometer， display caller ID， missed/dialled/received call， message， * Support play mp3 directly and music sync with smart phone*Specialty design， elegant and fashionable*Compatiable with smartphones which use Google android， For iphone ios， windows phone， Nokia Symbian， Blackberry OS systems. Specification:*Shape of the dial: Arch*Display Type: Numbers*Screen: OLED capacitive touch screen dispaly*Pedometer: 3d gravity sensor gyro*Memory: 32M*Speaker: 0.9W*Microphone: 38DB flat vibration motor: 8 x 2.7 mm*Bluetooth version: 3.0*Battery capacity: 250mAh*Charge time: 2-3 hours*Standby time: 168 hours*Charging: DC 5V / 1A (Please check the charger when charging specification)*Charging interface: Universal standard for micro USB*Product Weight: 0.04 kg*Product Size: 7.3 x 6.0 x 2.9 cm / 2.9 x 2.4 x 1.1 inches*Thickness: 1.2 cm / 0.5 inch*Diameter: 2.9 cm / 1.1 inch*Inner perimeter: About 18.0 cm / 7.1 inch Package Include: 1x L12S OLED Touch Screen Smart Bracelet Bluetooth Watch 1x User manual 1x Artist display base1x USB cable