Product Size: 11.4cm x 5.7cm x 2.2cm

Product Feature:
1. Ultra thin model is easy to carry.
2. Strong anti-interference capability within a connection distance of 15m.
3. Smart electricity saving enables longer standby time.
4. By using USB receptor, plug on and ready to use.
5. R250 high speed rate of return, 1500DPI provides highly precise operation experience.
6. Spherical roller is comfortable and smooth to use.

Usage:
Unwrap the product, install 2 AAA batteries into it. The receiver supports plug and play.