Features: 1.Widened: Widened and enlarged, it has more keys and wider keys than ordinary 7 inch keyboards, and can have a better user experience, all aluminum alloy back cover. 2.Antiskid Panel: The brushed metal texture keyboard panel is nonslip, giving a high end feeling and exquisite workmanship. 3.Waterproof and Dustproof: Light weight, quiet keys, waterproof, dustproof, scissor keyboard, fast typing, good feel. 4.TPU Silicone Soft Shell: TPU silicone soft shell, built in unseen pen slot, you can put your pen, good anti drop effect. 5.Scope of Application: Portable and ultra thin, it is very convenient for you to carry it for travel or business trips, and can be used with smartphones, tablets, laptops, desktop computers. specification:Item Type: Wireless BluetoothKeyboard Material: ABS, TPU, Silicone Keyboard: Bluetooth 3.0: Standard MICR interface Within 10 Meters: Effective Operation Possible Modulation Method: GFSK Working Voltage: 1.8-3.6V Working Current: