1Supports for Android 4.0, for OS X 6.0, for Windows 7 and above, supports a variety of BT devices, and supports BT 3.0 connection and RF 2.4G connection. 2Equipped with a specially designed keyboard bracket, which can fix your device at a perfect angle for typing and reading. 3With USB charging function and sleep mode, the keyboard only takes 2 to 3 hours to fully charge and 6 months standby, and enters sleep mode without operating instructions for 10 minutes, which is energy saving. 4Made of environmentally friendly ABS material, with ergonomic design, the keyboard is durable and comfortable. 5The keyboard can eliminate noise during typing and provide a smoother typing experience. With a touchpad, the operation is more convenient. Item Type: Wireless Keyboard Material: ABS BT Protocol: 3.0 Built in Polymer Lithium Battery: 300mAh Connection Method: BT RF2.4G Effective Distance: Approx. 10meters / 10.9yd Compatible: For Android 4.0, For OS X 6.0, For Windows 7 and Above Keyboard Size: Approx. 362 x 145 x 19mm / 14.3 x 5.7 x 0.7in 1 xWirelessKeyboard 1 XUser Manual 1 x Charging Cable 1 x USB Receiver with Built in Battery