. Mode L7 Ultra Polling Rate Wired 8K + Wireless 8K  Micro Switch Omron Optical Switch: 70 Million Clicks Sensor PAW3950 Chipset Realtek Chipset DPI 42000DPI  Tracking Speed 750IPS Acceleration 50G Battery Blue: 250mAh White/Black: 500mAh Weight 39g (± 2g) 46g (± 2g) Scroll Wheel TTC Gold Wheel Encoder   Transmission Technology TOPSPEED Wireless Technology Connectivity Tri-mode (Type-C Cable/2.4G Hz/ Wireless) Surface Coating Premium SuperGlide High-Performance Glass Coating Feet Pure PTFE Glides Size 115.62*60.61*36.04mm Receiver Ultra-Fast Wireless 8K Custom Receiver Package Contents Receiver, Charging/Data Paracord Cable, User Manual, Anti-slip Sticker