Logitech R500 2.4Ghz USB Wireless Presenter PPT Remote Control Flip Pen

Launcher: 1. Laser color: red light 2. Remote control method: Bluetooth smart, wireless connection 3. Wireless frequency: 2.4GHz 4. Controlling distance: 20 meters 5. Laser wavelength: 640-660nm 6. Laser power: less than 1mw 7. Power supply mode: 1 AAA battery 8. Dimensions: 123.6 x 36.6 x 24.7mm 9. Weight: 53.5g Receiver: 1. System: Compatible with Window, Mac OS, iOS and Android 2. Interface: USB 3. Dimensions: 25 x 17.5 x 6.6mm 4. Weight: 2g