Silent and luminous wireless Bluetooth keyboard, compatible with for Android// 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 . Thinner than for ! 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 of the brushing process shell, which is more beautiful and less likely to stick to fingerprints or oil stains 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: Black Package Contents: 1 x Keyboard 1 x Data Cable 1 x Instructions in Chinese and English 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.