Asmart center&reg; Fashionable Design L12S OLED Bluetooth Watch Bracelet with Answer Call,led Caller Id,Time Display,anti-lost Alarm and Music Player Function for Iphone,samsung,blackberry all Smart Cellphone (white) The bracelet with special design, different colors After pair with the mobile phone, the bracelet will remind you by vibrate and show caller's ID while receiveing a call. You can answer your phone or reject it directly on the bracelet. Easy and convenient! Avoid loss: When your mobile is out of the bracelet's Bluetooth range (10m), it will vibrate and remind you take care of your mobile to avoid loss. show SMS detail information(need to download an app for the android watch phone ).6. Built in NFC chip and energy chip