Feature:1. Multi Function Keys: Multi function keys, the keyboard comes with 13 shortcut keys, which is more convenient to use.2. Characteristics: With round keycaps, ergonomic design, ultra thin and silent, ultra long key life, comfortable and skin friendly feel, the keyboard is responsive.3. Smart Touch: Smart touch, supports multiple touch gestures, easy to use. Ultra thin body, light weight, easy to carry.4. Widely Compatible: Easy to switch and stable connection, can support terminal devices with BT external keyboard and switch between devices smoothly, suitable for smartphones, tablets or laptops.5. Built in Battery: Built in rechargeable battery, long lasting standby, USB interface, durable, can be recharged repeatedly.Specification:Item Type: Touch Wireless KeyboardMaterial: ABSStandby Time: > 100 DaysEffective Operating Distance: within 10 MetersCharging Time: 2-3 HoursModulation Method: GFSKWorking Voltage: 3.0-4.2vWorking Current: <8mA (when the Touchpad is Working)Standby Current: <0.3mAButton Strength: 80+10gSleep Current: <40uAButton Life: 3 Million ClicksCharging Current: 100mAWorking Temperature: -10 to +55Built-in Lithium Battery Capacity: 280mahLithium Battery Life: 1 Year.Package List:1 xTouch Wireless Keyboard1 x USB Charging Cable1 x Chinese and English User Manual