SPECIFICATIONS

Adjustable resolution: Fifth gear
Applicable models: desktop
Battery Included: no
Brand Name: Razer
Connect to the computer: Wired
Does it support ergonomics?: support
High-concerned chemical: None
Model: Viper Mini
Origin: Mainland China
Package: Yes
Product size: 127*70*44mm
Product weight: 105g
Roller direction: Touch wheel
Type: 2.4Ghz Wireless
brand: Razer
color: black
key count: 5
mouse size: Common mouse (100-120mm)
photoelectric resolution: 5600dpi
way of working: Optoelectronics

The new version of Razer , does not support the original driver, plug and play.This is the mainland China version, no programmable buttons!Razer software cannot detect, please do not place an order if you mind 
ULTRA-LIGHT. ULTRA-FAST.
Born to push the very limits of ultra-lightweight gaming, the Razer Viper Mini takes up a smaller form that remains just as big in performance. Shortening its length and grip width, we've worked with enthusiasts and esports athletes to hone its design even further, ensuring that absolute control now belongs in the hands of more gamers-so take hold of our leanest and lightest gaming mouse yet.
61G ULTRA-LIGHTWEIGHT DESIGN
The ambidextrous chassis has shaved off more weight, so you can enjoy even swifter swipes, yet remains as durable and solid as ever. Recommended for gamers with small to medium hand sizes, this ultra-lightweight gaming mouse is best suited for those who favor claw or fingertip grip styles.
RAZER™ OPTICAL MOUSE SWITCH