Features: Comfortable Quiet Typing Comfortable and excellent key touch feeling to release your fatigue. Keyboard with Built-in Touchpad With a touchpad, you canenjoy smooth, accurate control with multi-touch gestures. Ergonomic Tilted Design Ergonomic tilted design reduces wrist strain, for the perfect key strokes. Built-in Lithium Battery Built-in environment-friendly rechargeable lithium battery, therefore no hassle with replacing batteries. BT 3.0 Wireless BT 3.0 for fast pairing and wide operating range up to 10 meters. Support BT-enabled Devices It has wide application for it can work with most BT-enabled device, support for smart phone and tablet. Ultra Slim Design Portable, easy to carry, work and play anywhere anytime.