Use your Mouse on any Surface - Surface Calibration | Razer 101 - YouTube
Razer Firefly V2 - Gaming Mouse Pad (Gaming Mouse Mat, Micro-Textured Surface, Cable Holder, RGB Chroma Lighting) Black : Amazon.co.uk: PC & Video Games
Where is mouse pad calibration in Razer Synapse 3 for the Viper? : r/razer
How to Calibrate Razer Viper V2 Pro? - YouTube
Razer Synapse - Hardware Configurator | Razer Italia
How to Calibrate Your Mouse Pad with Razer Synapse - YouTube
Online Master Guide
For those who want low LOD on Viper Mini (photo and comment) : r/MouseReview