katito AiEK M3 Mini Pocket Ultra Slim OLED Cell Mobile Phone GSM M3 MP3 Bluetooth Card Size (Black) Function: message, speaker, MP3, Bluetooth, Radio and so on. Li-battery:320mAh DC 5V, USB charger Charging time: no more than two hours each. Compatible for: Students & Women & Child. GSM850/900/1800/1900 Supported languages: English, Chinese. Package:1 X mobile Phone 1 X 320mA Li-battery 1 X USB cable 1 X earphone.