Mouse Razer Wireless BASILISK X HyperSpeed Razer HyperSpeed Wireless technology Razer™ 5G Advanced Optical Sensor Ultra-Long Battery Life Razer™ Mechanical Mouse Switches 6 Programmable Buttons Razer 5G Advanced Optical Sensor with true 16,000 DPI Up to 450 inches per second (IPS) / 40 G acceleration HyperSpeed wireless technology (using 2.4GHz Dongle) Dual-mode wireless (2.4GHz and BLE) Six independently programmable buttons Razer™ Mechanical Mouse Switches rated for 50M clicks Ergonomic right-handed design Gaming-grade tactile scroll wheel On-The-Fly Sensitivity Adjustment (Default stages : 800/1800/3200/7200/16000) On-board DPI and keymap storage. Razer Synapse 3 enabled Battery life: Up to 285 hours (2.4GHz), 450 hrs (BLE) with included AA battery. Approximate size: 130mm (Length) x 60mm (Grip Width) x 42mm (Height) Approximate weight: 83 g / 2.9 oz (Excluding battery)