Package:YesWireless Communication:RF Use:TV,Computer,Projectors Origin:Mainland China Backlit Air Mouse : The backlit air mouse feature allows for easy and comfortable use in low light conditions. Wireless Keyboard : The wireless keyboard feature provides a convenient and clutter-free way to type and navigate. RF Wireless Communication : The RF wireless communication feature ensures a stable and reliable connection between the mouse and keyboard. Projector Compatibility : The projector compatibility feature allows for seamless integration with your home theater system. Note (about USB receiver,plug and play) *In defualt, we have paired ok, when you receive,you can plug and play. *If the indicator is on, but not work, you can try to pair it again. *It is very easy to pair it. *First, Click TV and OK buttons at same time, the indicator will flashing,Then insert the usb receiver to your for windows pc or for android tv box, the indicator will stop flashing, so it is pair ok. Notice Let's talk about IR learning, on the bottom of this keyboard have 4 IR learning keys. As some customer response to us it not works correctly. Kindly remind that if you have this problem, pls press TV + DEL key to reset the keyboard. And then follow the manual to use IR learning. System Support 1. For Android OS 2. For Mac OS 3. For Linux 4. For Windows IR learning function There are 5 buttons which could be programmed to your TV remote keys: 1. Power button -Locate the top left corner 2. 4 colors buttons-Locate the bottom Note: Please check if your TV remote supports the NEC protocol for learning. IR learning operation as the following steps 1. Pointing IR emitters of the TV remote and the air mouse to each other , 2. Press and hold the TV key on the remote 4-5s until the LED flash slowly, 3. When you see the LED flashing slowly ,press the key on your TV remote to learn, 4. When the remote receiver the IR signal,the LED will be solid. 5. The 5 keys could learn following the step 1-4, 6. Press the TV button to finish the learning process. Feature 1 Transmission and control: 2.4 G RF wireless radio-frequency technique; 2) Sensor: 3-Gyro + 3-Gsensor; 3) The key number:81 keys; 4) Control distance: 5m; 5) Battery Type: AAA*2(not included) 6) Working Power: Less than 10mA in the work condition; 7) Standby Power: Microampere, almost no power, in line with the European ''Energy star'' environmental standard; 8) Material: Plastic and silicone; 9) size: 172*52*19mm; 10) Weight: About 100g. Package included 1 * MX3 air mouse 1 * USB Wireless Receiver