Feature: 1. Simple and fashionable, compact and portable. Equipped with BT technology, you can easily type on your laptop, smart phone or tablet wherever you go. 2. The keyboard supports up to three devices with different operating systems, easy to switch. You can type, switch, and continue to type. 3. Simple keyboard layout, compact key design, convenient to use. 4. The concave low scissor foot buttons fit the shape of fingertips, providing smooth, quiet and comfortable input experience. 5. Wide compatibility, the multi-device BT keyboard can connect almost all wireless BT devices that support BT external keyboard, compatible with smart phones, laptops, tablets and other devices. Specification: Features: BT Technology K380 multi-device keyboard is equipped with BT technology, can be satisfied at home, out or in a coffee shop to easily handle multi-tasking. Wide Compatibility K380 multi-device BT keyboard can be connected to almost all terminal devices that support BT external keyboards. EASY-SWITCH Smooth Switching Multi-device connection. Up to three devices with different operating systems can be connected, switch with just one touch. Laptop E xperience The concave low-position scissor buttons can fit the shape of the fingertips, providing a smooth, quiet and familiar notebook-style input experience. 2-year B attery Life Built-in 2 AAA alkaline batteries, battery life up to two years, no need to worry about power shortage. Specification: Model: K380 Color: Pink, grey,white,red blue (Optional) BT version: 3.0 Wireless range: up to 10 meters Connection method: BT Battery: 2 AAA Battery(Not included) Battery life: 24 months Item size:27.9*12.4*1.6 cm / 10.98*4.88*0.63 in(L * W * H) Item weight: Approx.400g /14.11oz Package size:28*13*2 cm / 11.02*5.12*0.79 in(L * W * H) Package weight:410g /14.46oz Packing list: 1 * BT Keyboard 1 * User Manual Package List: 1 * BT Keyboard 1 * User Manual