1. Colorful breathing light effect, rechargeable without worrying about battery life 2. Drive-free plug and play, 10 meters high-efficiency wireless transmission distance 3. Intelligent sleep and lasting battery life, built-in rechargeable lithium battery 4. Lightweight, portable and easy to store, flat design is good for storage, can be carried with you 5. Comfortable hand feeling, high-gloss surface spraying, non-sticky, easy to clean 6. Compatible with a variety of devices, suitable for various brands of laptops, desktops, smart TVs, tablets/mobile phones (requires adapter) Product parameters: 1. Interface: USB 2. Working method: photoelectric 3. Size: 113x57x25mm 4. Battery capacity: 500mah 5. Weight: about 70g 6. Connection method: Bluetooth wireless 7. Working current: less than or equal to 100mA 8. Working voltage: DC 5V 9. Wheel direction: four-way wheel 10. Operating distance: 10m 11. Applicable models: laptop 12. Wireless transmission frequency: 2.4GHz