Wireless Keyboard laser Bluetooth Discussing: 1. The projection keyboard will work via Bluetooth HID. Connect to major devices such as tablets, smartphones, desktops and video games. 2. As a new input device, use the built-in infrared laser launcher to display a standard keyboard on the work surface. 3. You can find the place of clicking and enter information by recognizing it optically. 4. No physical keyboard, small size, easy to carry, this projection keyboard can adapt to most working environment. 5. For Bluetooth devices, operating system: for Windows, iOS, Android, for Mac OS - Inner mesh panties Light Source: Red Laser Diode Keyboard size: width: 240 mm, height: 100 mm Keyboard location: about 80 mm from the bottom of the device Design surface: reflective, opaque plane Recognition speed: up to 350 characters per minute Working surface: any powerful aircraft Battery charging time: about 120 minutes Bluetooth: V3.0 for HID Profile Ver 1.0 Operating temperature: 035/90% RH Storage temperature: -5 to 35C/90%RH