Overview:1. The projection keyboard will work through the Bluetooth HID. Connect to major devices such as tablet PCs, smartphones, desktop computers, and video games.2. As a new input device, use the built-in infrared laser launcher to project the standard keyboard on the working surface3. You can find the click location and enter the information by optically recognizing it.4. No physical keyboard, small size, easy to carry, this projection keyboard can adapt to most of the work environment.5. For devices with Bluetooth, the operating system: for Windows, iOS, Android, for Mac OSSpecification:Light source: red laser diodeKeyboard size: width: 240mm, height: 100mmKeyboard location: about 80mm from the bottom of the deviceProject surface: reflective, opaque planeRecognition rate: up to 350 characters per minuteOperating surface: any sturdy planeBattery charging time: about 120 minutesBluetooth: V3.0 for HID Profile Ver 1.0Operating temperature: 0 ~ 35 ℃ / 90% RHStorage temperature: -5 to 35 ° C / ~ 90% RHPackage Content:1*Laser Keyboard  pidelo en decoyu.com