1. Bluetooth receiving distance: 10m
2. Surface coating technology, smooth and delicate feel
3. Support Bluetooth and 2.4G wireless dual mode
4. Small and exquisite, easy to carry
5. Power-saving design, reliable and durable, up to 12 months of battery life
6. Using advanced optical positioning technology, high positioning accuracy
7. Size: about 108x57x23mm
8. Weight: 68g