Features: brand new and high quality Light weight powerful, matte surface creates wonderful sense of for touch. High quality metal material anti-shock and scratch. The wireless mini bluetooth-compatible keyboard permits users to instantly flip their tablet or phone into a tiny laptop computer for fast, comfortable typing. Wide application, for most modern devices, for bluetooth-enabled devices .for Windows, android and iOS are for keyboard. If you modify your phone or if you change your laptop/tablet, you’ll simply keep using the same keyboard. This mini folding bluetooth-compatible keyboard would be great for vacations and travel, very portable. With built in rechargeable battery 140mAh, users get pleasure from up to 48 hours of writing for time with only one charge. Standby for time is up to 560 hours. Specifications: Bluetooth-compatible version: 5.1 Interface and connector type: Bluetooth-compatible Power type:140mAh lithium-ion battery Working voltage: 3.0-4.2V Standby current: 1mA Use for key the working current: less than 3mA Working distance: less than 15m/49ft Button material: ABS Keyboard layout: for 81 keys Unfolding Size:approx 304.31x98.12mm/11.98x3.86in Folding Size：approx 152x98.12x14.5mm/5.98x3.98x0.57in Package Includes: 1 PC x Folding Keyboard note: This bluetooth-compatible keyboard is not for any kinds of computer sticks Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-2mm error due to manual measurment.