Scissor-Switch Design:The scissor-switch design makes it comfortable to type and there is no noise, providing you mute using experience. Long Working Time: The keyboard adopts built-in 140 mAh lithium battery, which can support 45 days working and 90 days standby Foldable and Compact:You can carry the and mini keyboard with you to anywhere you want. It is very suitable for traveling. Universal:The keyboard is compatible for most tablet, computer and phone. Connection method: Bluetooth Battery specification: 140mah carp battery Number of keycaps: 64 keys Charging interface: Type-C Touchpad working current:Less than 11mA Working voltage/current: 3.2-4.2V Less than 3mA Standby/sleep current: 0.7mA/16uA Service life: 45h Standby time: 90 days For:Three Systems Universal Colour:Black&White Material:ABS Package Contents: 1 x keyboard 1 x cable 1 x English instruction manual 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.