Features: 1.The built?in rechargeable lithium polymer battery can be fully charged in about 1?2 hours, and it can be used continuously for about 60 hours without interruption when fully charged. 2.This comfortable keyboard is fast and quiet to use, and shortcuts can save you time to start tasks or media controls. 3.Ultra?thin Bluetooth keyboard, with this keyboard, you can easily access it in your laptop, tablet or smartphone. 4.The volume is much smaller than the traditional keyboard, which can save more space for your desk and school bag. 5.Made of high-quality ABS material, wear-resistant and durable, not easy to damage, and can be used for a long time. specification:Item Type: Bluetooth Keyboard Material: ABS Product Size: Approx. 33.3cm/13in Fitment Models: Fit for Air/5 Fit for Samsung and Other Tablet Computers Color: White Number of Buttons: 78Pcs Bluetooth Version: Bluetooth 3.0 Power Supply Interface: Micro USB Battery Capacity: 150mA (Built-in Lithium Polymer Battery) Standby Time: 30 Days Operating voltage: 3.0~5.0V Button Life Times: 100 Million Times Effective Use Distance: Approx. 10m/32.8ft PackageList: 1 x Instruction 1 x 78-Key Bluetooth Keyboard 1 x Charging Cable