1. Ultra slim and mini-sized 2.4GHz Wireless Keyboard with TouchpadPerfect for the living room，TV-connected computersmart TV. For bigger sizeRii K18 is better.
2. X-style quiet keys and Multi-finger touchpad(3.8inch).
3. 12-meter (40-feet) wireless range: Ensures trouble-free connection in the largest room. Wireless range may vary depending on operating environment and computer setup.
4. Back cover - High strength aviation aluminum with Charming metallic luster.
5. Built-in rechargeable Li-ion battery;Two modes of auto sleep function(3 mins and 2 hours) for saving power clicking any key to activate.