The Caller ID watch with Bluetooth technology keeps you connected in style by combining a vintage analog/digital watch design with Bluetooth Wireless technology. It notifies you when your phone rings with a discreet vibrating sensation and showing the caller's name and/or number on the bright OLED display. When an SMS/text message is received the watch will vibrate and the text alert icon will appear. You can mute the phone's ringer or reject a call by simply pushing a button on the watch. Sport style Water resistant to 3 ATM Bluetooth 2.0 compatible 96x16 pixel OLED display 14 days active battery life Power save function 120-240V AC adapter with 5V DC Out