Silent and luminous wireless Bluetooth keyboard, compatible with for Android/Windows/Apple systems, supports mobile phones/tablets/computers Multi-device Bluetooth keyboard, easy to switch and stable connection, can be connected to almost all terminal devices that support Bluetooth external keyboards and switch between devices smoothly; allowing you to enjoy a comfortable and portable input experience like a desktop computer on your smartphone, tablet or notebook Built-in rechargeable battery, no more battery replacement. Built-in rechargeable battery, no more computer troubles. No need to replace the battery repeatedly, environmentally friendly and better to use Take it with you at any time. Slim appearance and lightweight. Thinner than for iPad! Can be easily put into a computer bag for easy portability Better protection: The brushing process does not leave fingerprints. A layer of protective oil is added to the surface of the brushing process shell, which is more beautiful and less likely to stick to fingerprints or oil stains<br><br>Interface standard: Bluetooth 3.0 Charging time: less than 2 hours Limited operating range: within 10 meters Lithium battery capacity: 180mA Working hours: more than the 40 hours Working voltage: 3.0~4.2V Working temperature: -10~55 degrees Working current: less than 2.5mA Lithium battery specifications: 3x23x23MM Button force: 60±10g Button life: 3 million clicks Standby time: more than the 100 days Material: ABS colour: Dark green<br><br>Package Contents: 1 x Keyboard 1 x Data Cable 1 x Instructions in Chinese and English<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.