Product information: Material: Plastic 1. USB connection, supporting hot plug. 2. No external power supply. 3. Different types of operating systems are supported. 4. Solid state
Material information: Â Type: Mini keyboard Connection with computer: wireless Interface: USB Style: Answer: D8 Bluetooth + 2.4G dual-mode backlight, B: D8 2.4G backlight
Product information: Frequency range: 136-174/400-520 (MHz) RF output power: 1/5/10 (W) Number of channels: 128 Theoretical communication distance: 1-15 (km) Working voltage: 7.4