Model No.: RC30-031501. Approximate Size & Weight: Length: 130 mm (5.11 in). Grip Width: 60 mm (2.36 in). Overall Width: 75 mm (2.95 in). Height: 42 mm (1.65 in). Weight: 83 g (2.9 oz) (Excluding battery). Bluetooth. 5G: Avanced optical sensor. True 16,000 DPI. Hyperspeed wireless technology. Ultra-long battery life. Razer mechanical mouse switches. Onboard DPI storage. Untethered lethal precision. Razer Advanced 5G Optical Sensor: For cutting-edge precision. Razer Mechanical Mouse Switches: For durability of up to 50 million clicks. 6 programmable buttons. Onboard DPI Storage: For personalized settings wherever you go. Ultra-Long Battery Life: For extended use with up to 450 hours of battery life. Ultra-Fast Razer Hyperspeed Wireless Technology: Faster than wired gaming mice. Razer HyperSpeed delivers the fastest wireless gaming performance (Information is accurate at time of printing), at least 25% faster transmission speed than any other gaming mouse. Offering the lowest click latency, improved power efficiency and seamless frequency hopping to maintain peak stability, in even the noisiest environments. 25% faster. What's Inside: Razer Basilisk x HyperSpeed; wireless USB dongle; AA battery; important product information guide. What's Needed: Product Requirements: PC with a free USB port or Bluetooth 5.0 connectivity. Razer Synapse Requirements: Windows 7 64-bit (or higher). Internet connection for software installation. 2 year warranty. FCC listed. Designed and engineered by Razer in California. Made in Taiwan.