Logitech G604 LIGHTSPEED Wireless Gaming Mouse - BLACKThe G604 LIGHTSPEED Wireless Gaming Mouse is an upgraded version from the old G602 gaming mouse.Here the key features:- 15 Programmable Buttons (including 6- pack thumb buttons)- HERO 16K Sensor, which allows allows for 240 hours of high-performance wireless gaming on LIGHTSPEED and up to 5.5 months on Bluetooth - all on one AA battery - Dual Connectivity, connect to one computer via LIGHTSPEED receiver and another via Bluetooth- Dual-mode Hyper-fast Scroll WheelEAN: 5099206084254 / 910-005650