HERO Gaming Sensor HERO sensor delivers leading performance and up to 10x the power efficiency; the G603 Logitech gaming mouse delivers accuracy and responsiveness with sensitivity up to 12000 DPILIGHTSPEED Wireless Ultra-fast LIGHTSPEED Wireless technology gives you a lag-free gaming experience The G603 wireless gaming mouse delivers incredible responsiveness and reliability with a super-fast 1ms report ratePerformance management High mode delivers peak performance with 1 ms reporting and up to 500 hours of non-stop gaming; the G603 wireless mouse enables you to switch between highlow mode easilyMulti-host Dual connectivity with LIGHTSPEED and Bluetooth allows you to connect and control multiple PCs Macs or laptops; easily switch between the two with a press of a buttonComfortEnergy efficient Customise G603 wireless computer mouse to get just the right weight balance and comfort using either one or two batteries; G603 PC gaming mouse delivers up to 500 continuous gaming hours with 2 AA batteriesNO WIRES NO LIMITS World&8217;s NO1 Best Selling Wireless Gaming Gear Brand - Based on independent aggregated sales data (FEB &8216;19 - FEB&8217;20) of Wireless Gaming Keyboard Mice &38; PC Headset in unitsG603 is a next-generation gaming mouse designed for a wireless world It has a rich set of advanced features and technologies to provide high performance for even the most demanding gamers G603 is the first gaming mouse to feature the new HERO sensor which provides exceptional accuracy and precision with a sensitivity of up to 12000 DPI At the same time G603 delivers up to 10x the battery efficiency of prior generations It also includes LIGHTSPEED wireless technology which provides professional-grade wireless performance and unrivalled reliability &8211; even surpassing many wired gaming miceTroubleshooting Steps;1 Open Logitech Video Game AssistantStart&62; Programs&62; Logitech&62; Logitech - Video Game Assistant 8x2 Click on the illuminated mouse buttons3 Right-click on the game profile you want to lock and select Properties4 Check the box next to Lock profile while playing5 Click OK to save the settingThe chosen profile will be locked until you exit the game This means that your profile will remain active even if other applications start and have significant activity during the gameBox Contains&8211; Wireless gaming mouse &8211; LIGHTSPEED&8482; USB receiver &8211; Receiver extender cable &8211; 2 AA batteries &8211; User documentation 2-year manufacturer&8217;s guarantee and full product support