"OTG cable turns your smartphone into a USB host. Responsive and comfortable keys enable fast data entry. Smart touchpad for accurate cursor control. Provides quick pairing and connection. Enhances your multimedia and Internet experience. Dedicated keys like player, mute, search, browser, mouse left and mouse right keys. Auto sleep and wake feature. Powered by a rechargeable li-ion battery. Also compatible with Windows OS, Mac, Linux, PS3 and Xbox360. Specifications : RF frequency : 2.4GHz Operational range : up to 10m Power transmission : +5db max. Operational voltage : 3.3V Operational current : <50mA Charging current : <300mA Sleep current : <1mA Dimensions (H x W x D) : 97.5 x 146.8 x 19 mm Weight : 110g Package Includes : Wireless Mini Keyboard With Touchpad USB Receiver USB Charging Cable Lithium-ion Battery User Manual USB OTG Cable Compatible with the following Samsung models : Galaxy S4 (S IV) Galaxy S3 (S III) Galaxy S II Galaxy Note 2 (Note II) Galaxy Note Galaxy Note 10.1 Galaxy Tab Galaxy Tab 7.0"" Plus Galaxy Tab 7.7"" Galaxy Tab 8.9"" Galaxy Tab 10.1"" Galaxy Tab 2 7.0"" Galaxy Tab 2 10.1"""