B066T Tri-fold Wireless Bluetooth Keyboard Compatible Multi-system Cell Phone Tablet Keyboard 1.Three-fold seamless docking Bluetooth keyboard 2.Exquisite body design, portable to carry around 3.Multi-channel design, one key to switch freely 4.Ultra-comfortable hand feeling, use more smooth operation 5.Large touchpad, unlimited freedom of touch 6.Compatible with multi-system multi-device connection Specifications: 1.Model: B066T 2.Unfolded size: 342.35x114.7x12.2mm 3.Folded size: 182.25 x 114.7 x 21.3mm 4.Material process: ABS + Rubberized 5.Connection mode: Bluetooth 6.Battery specification: 140mAh lithium battery 7.Number of keycaps: 78 keys 8.Keyboard weight: 233g 9.Operating voltagecurrent: 3.0~4.2V2.2mA 10.Standbysleep current: 0.8mA0.017mA 11.Usage endurance: 40h 12.Standby time: 150 days 13.Touchpad size: 54.6x73.5 mm 14.Touchpad function: support IOS gestures 15.Charging interface: Type-C 16.Key structure: scissor foot 17.System support: WinAndroidIOSOSHMS 18.Touchpad operating current: 9.6mA