Amazon.co.jp: Razer Viper V2 Pro (Black Edition) Ultra-Lightweight Gaming Mouse 58g Focus Pro 30K Optical Sensor 30000DPI High Speed Wireless Optical Mouse Switch 6 Buttons Up to 80 Hours of Use Grip
Amazon.co.jp: Razer Viper V2 Pro (White Edition) Gaming Mouse, Ultra Lightweight, 2.0 oz (59 g), Focus Pro 30K, RZ01-04390200-R3A1 & Strider L RZ02-03810200-R3M1 Gaming Mouse Pad, Anti-Slip Rubber, Hybrid Soft/Hard Mat, Black,