FOR THE PROEsports has a new apex predator. As successor to the award-winning Razer Viper Ultimate, our latest evolution is more than 20% lighter and armed with all-round upgrades for enhanced performance. With one of the lightest wireless gaming mice ever, there’s now nothing holding you back.UPGRADEABLE TO TRUE 4000 HZ WIRELESS POLLING RATEExperience the fastest wireless performance ever with the Razer HyperPolling Wireless Dongle. Unlock a new standard of responsiveness with the ultimate upgrade for our most advanced mice, to secure the speed you need for top-flight competitive gaming.RAZER FOCUS PRO 30K OPTICAL SENSORUNLOCK ULTRA-FINE ADJUSTMENTSEnable Asymmetric Cut-off to individually set a lift-off and landing distance that’s tuned to your playstyle—with 26 granular levels of height adjustment compared to only 3 in the previous version.