The Razer Viper V4 Pro is a wireless gaming mouse designed for competitive gameplay. It features an ultra-lightweight construction of 49 grams, which reduces resistance during fast movements in the game. Inside, it is powered by the Razer Focus Pro 50K Gen 2 optical sensor with a maximum sensitivity of 50,000 DPI. This provides precise tracking and high responsiveness on various gaming surfaces. The sensitivity settings are customizable to adapt to different game genres. On the side, there are two programmable thumb buttons that can be assigned game functions such as weapon switching or special abilities, enhancing gaming efficiency. To avoid accidental sensitivity changes during intense sessions, a dedicated DPI button has been omitted. The wireless connection is made through the included receiver, which offers ample freedom of movement without cable interference. The battery life lasts up to 180 hours on a single charge, supporting long gaming sessions. The black surface and ergonomic design are tailored for right-handed users, prioritizing comfort and control. As a successor to previous Razer Viper versions, it continues to emphasize durability and reliability for long-term use in competitive environments. The mouse measures approximately 12.7 cm in length, 6.6 cm in width, and 3.8 cm in height. The weight, including the battery, is 49 grams. It is compatible with Razer Synapse software to customize key mappings, sensitivity profiles, and performance settings.