Specifications:  Color: Black, Red, White.  Size: Approx. 50 x 9 x 115 mm.  LCD screen Size: 2.4 inch.  Power supply: Built-in 2200mAh Li-battery.  Translation engine: Baidu Translation, Nuances Translation.  Wifi support: yes.  Bluetooth support: yes.  Adapter: 5V/1A.  Wireless distance: about 5m.  System support: For Android, For IOS.     Features:  -- 21 languages can be translated (Two-way translation):  -- 2.4-inch HD touch screen, support text dynamic input and correction.  -- Simultaneous translation and no waiting time.  -- N9 could be your professional translation assistant and your personal foreign language tutor.  -- Large capacity battery supports 480 minutes continuous working time and 190 hours standby time.  -- Support Android and IOS.  -- Support WIFI connection and Bluetooth connection.  -- Built-in microphone and 3D speaker help you enjoy the extremely clear voice.     Note:  - The translation function can only work with Internet. Please make sure that the pocket Interpreter is connect to WIFI.     Package Included:  1 x Pocket Interpreter.  1 x USB Cable.  1 x User manual.  1 x Package Box