Quick overview from the supplier:
Gaming Wireless Mouse Razer Viper Ultimate, 20k dpi, 8 buttons, 50G, 650IPS, 74g, Opt.SW, On-Board Memory, RGB, Dock, 2.4Ghz, Black
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FORM FACTOR Ambidextrous
CONNECTIVITY Razer™ HyperSpeed Wireless
Wired - Speedflex Cable
BATTERY LIFE Up to 70 Hours
RGB LIGHTING Razer Chroma™ RGB
SENSOR Optical
MAX SENSITIVITY (DPI) 20000
MAX SPEED (IPS) 650
MAX ACCELERATION (G) 50
PROGRAMMABLE BUTTONS 8
SWITCH TYPE Optical
SWITCH LIFECYCLE 70 Million Clicks
ON-BOARD MEMORY PROFILES 5
MOUSE FEET 100% PTFE Mouse Feet
CABLE Razer™ Speedflex Cable
TILT SCROLL WHEEL None
APPROXIMATE SIZES Length: 127.0 mm / 5.00 in
Width: 66.0 mm / 2.60 in
Height: 38.0 mm / 1.50 in
APPROXIMATE WEIGHT 74 g / 0.16 lbs
DOCK COMPATIBILITY Yes
https://www.razer.com/gaming-mice/Razer-Viper-Ultimate/RZ01-03050100-R3U1
