Mini Pocket Virtual Bluetooth Laser Projection KeyboardModel : KB580Keyboard layout:19mm tilt QWERT layoutProject surface: any solid surfacePosition: from the equipment 80mmPower supply: USB supply/less than 5V 500ABattery capacity:600mAh(MAX) 3.7VBluetooth: V 3.0 HID Profile Ver 1.0Charging time: a..