Product features razer lachesis blue gaming mouse 4000dpi razer precision 3g laser sensor 32kb razer synapse onboard memory nine independently programmable hyperesponse buttons 1000hz ultrapolling 1ms response time on the fly sensitivity adjustment variable true dpi setting adjustments in increments of 125dpi always on mode ultra large non slip buttons 16 bit ultra wide data path 60 100 inches per second ambidextrous design scroll wheel with 24 individual click positions zero acoustic ultrasli