Twinbuys E1 Ultra Thin Mini Card Pocket Phone Long Standby Low Radiation Support GSM Bluetooth MP3 Alarm Clock for Students Children (black) The most thin phone in world,Credit card size ,ultra thin and light design ,easy to carry 0.96 inch LED screen quite energy saving, Low radiation 0.283w/kg ,one tenth of the ordinary phones radiation quantity 7 days ultra long standby time less worry of power off and losing contact No games or Internet access ,suitable for children and students Support Bluetooth,MP3, FM radio, alarm clock, multimedia etc