Features:
1. Ergonomic design, stable operation and comfortable hand feeling
2. Adopting optical tracking technology, smooth cursor control and high sensitivity
3. Add weight design, better use feeling
4. PS2 and USB two interfaces to meet different needs

Product parameters:
1. Material: ABS, electronic components
2. Photoelectric resolution: 1200dpi
3. Number of keys: 3 keys
4. Interface: USB/PS2
5. Adjustable resolution: four gears
6. Wheel direction: front and rear
7. Working method: photoelectric
8. Cable length: 1.4m
9. Product size: 12 x 7 x 4 cm
10. Product weight: about 200 grams