Built-in wireless Bluetooth 2.0 silicone keyboard. With CW6627 as main control chip, wih bluetooth 2.0 interface. Use indusry-leading bluetooth solution, WIDCOMM BTW bluetooth software which is specified by Microsoft. Stylish protective PU leather case designed for Samsung Galaxy Tab 2 10.1" P5100 P5110 P5113. Display stand for easy viewing. With LED indicators. Built-in rechargeable lithium battery lasts for max 45 hours per USB charger. Build-in power management software. Energy saving keyboard sleep mode. Connect to Samsung Galaxy Tab data port directly, no software installation. Easy operation, no need drive, just plug and play. Silence design, would not affect other people's rest. Light weight, quiet keystrokes, water-proof and dust-proof.