Features: 1.Advanced Technology: Wireless keyboard uses BT 3.0 technology, stable connection, click to start connecting, easy and convenient. 2.Small Portable: IOS tablet keyboard has compact structure design, light weight, less space, and easy to carry around. 3.Lock Screen Function: Directly operate on the keyboard to lock the screen of mobile phones and tablets, which helps to protect intimacy and save power on the device. 4.Long Battery Life: Mini Wireless Keyboard can work continuously for more than 40 hours, and has an automatic connection function 5.Wide Compatibility: Compatible with for Android, for iOS,for Windows systems, and supports BT enabled mobile phones, tablets, and laptops. specification:Item Type: Wireless Keyboard Material:ABS Interface Standard: BT 3.0 Charging Time: Less Than 2 Hours Operating Effective Range: Within 10 Meters Built-in Lithium Battery Capacity: 150mAh (Inclusive) Sustainable Working Time: More Than 40 Hours Working Voltage: 3.0-4.2V Working Temperature: Minus 10 to 55 Standby Current: Less Than 0.3mA Button Life: 3 Million Clicks Standby Time: Less Than 100 Days Charging Current: Less Than 200mA PackageList:1 x Wireless Keyboard 1 xCharging Cable NoteShip with built in battery