Razer Viper Ultimate Wireless Gaming Mouse HyperSpeed Wireless Technology 20000DPI FOCUS+ Optical Sensor (without Charging Base)

Features:
Razer HyperSpeed Wireless Technology
25% faster than other wireless technology, provides high-speed transmission, lowest click latency, stable and fast response.
FOCUS+ Optical Sensor
It has 20000DPI with 99.6% resolution accuracy, ensuring that even the most subtle movement from this mouse is tracked with consistency.
Asymmetric Abort Technique
When the mouse is lifted, a certain working height can be reserved to prevent the tail angle from changing rapidly and the sensor from slowing down.
Optical Mouse Switch
The optical mouse switch is optimized and adjusted to achieve zero error execution, no springback delay is about three times faster than traditional mechanical fretting.
Ergonomic Design
Enjoy faster and smoother control with the 78g wireless gaming mouse, fit the palm, not easy to fatigue.
8 Programmable Buttons
Fully configurable via Razer Synapse 3, the 8 programmable buttons let you access macros and secondary functions so you can execute extended moves with ease.

Specification:
Brand: Razer
Model: Viper Ultimate
Sensor: FOCUS+ (PAW3399) optical sensor, 20000DPI
IPS: 650inch/s
Acceleration: 50G
Wireless connection: HyperSpeed
Cable length: 1.8m
Item size: 12.7 * 6.6 * 3.8cm /5 * 2.6 * 1.5in
Item weight: Approx. 74g /2.61oz

Packing list:
1 * Mouse
1 * Charging cable                                                                                
1 * User manual