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. 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: <2.0mA Standby Current: 0.3-0.5mA Sleep Current: <40UA Charging Current: ≥200mA Standby Time: >30 days Charging Time: <2 hours Built in Lithium Battery Capacity: 110mAh Continuous Working Time 44 Hours Button Force: 80±10g Key Life: 5 Million Clicks Working Temperature: -10 to 55℃ Protective Case: for Lenovo Xiaoxin P11, for Lenovo TB J606F 1 x Keyboard 1 x Leather Case 1 x USB Cable