Batteries not included for shipping safety.

About this item 25% Faster Than Competing Wireless Mice: The all-new, Razer HyperSpeed wireless technology brings together extreme low-latency and interference reduction for true wireless freedom Dual Mode Connectivity: Supports Bluetooth for efficient power consumption and HyperSpeed Wireless for lag-free gaming.Max Acceleration (G):40 6 Programmable Buttons: Allows for reconfiguration and assignment of complex macro functions through Razer Synapse 3 Up to 450 Hr Battery Life: Lasts 450 hours on Bluetooth, 285 hours on HyperSpeed Wireless Durable Mechanical Switches: Supports up to 50 million clicks, backed by a 2 year warranty