Logitech G309 LIGHTSPEED Wireless Gaming Mouse.

• Sensor: HERO 25K (100 to 25,600 DPI) • Connectivity: LIGHTSPEED Wireless (2.4 GHz) and Bluetooth • Switches: LIGHTFORCE Hybrid optical-mechanical switches • Battery Life: 300+ hours using a single AA battery (or battery-free using a Logitech POWERPLAY wireless charging system) • Weight: 86g with an AA battery (or 68g when set up with POWERPLAY) • Buttons: 6 programmable buttons