Model Number: m20-961N Brand Name: OEM/ODM Key Specifications/Special Features: 1. Mouse system: optical 2. Ergonomic design 3. Low power consumption 4. 2.4GHz free moving in 10 meters 5. Safety standards needed 6. With On/Off power switch 7. Not need driver plug and play 8. Adopt water transfer printing technology Model number M20-961N Size 104*66.8*36mm Certifications CE, FCC, RoHS Directive-compliant, ISO 9001 Attribute Wireless mouse Sensor type 800-1600dpi Type Optical Power saved Low power consumption Interface USB Operating systems Windows 2000, ME, XP, Vista, Win7/8/Mac Working distance 10m Lifetime Over 30 million times Common usage Home and office use or other purpose for laptop and PC Feature Customized logo, color, brand name Advantages Intelligent connectivity, no need to code, plug-and-play