OMEN by HP Mouse 400 (3ML38AA)



  • On-the-fly control
  • Optional “Sniper Mode” thumb button function: Lower DPI to 400 to increase accuracy while aiming—and never miss a shot again.
  • DPI levels from 1,600-5,000 and optical sensor
  • Ergonomic right-hand design: Engineered with rubber grips to provide added control and comfort.
  • 6 customizable buttons
  • RGB LED lighting: Customize your mouse with 8 colors and 2 effects.



Winning is a team effort, and with the right tools you’ll send your game, and team, soaring to new levels. Engineered for precision, OMEN by HP Mouse will add a touch of success to every challenge the game brings your way.


Keep up with the game

Stay ready for anything with Omron mechanical switches that are optimized to give you faster response times and a liftime of 10 million clicks.

On-the-fly control

Make on-the-fly decisions with buttons that let you adjust everything from DPI to polling rate —without interrupting your gameplay or opening additional software.

Click. Right on target

Snipers are precise, and so are you. With an optional ‘Sniper Mode’ thumb button function, lower DPI to 400 to increase accuracy while aiming—and never miss a shot again.
Customize your accuracy
Fine tune your accuracy with a range of DPI levels from 1,600-5,000 and a new optical sensor designed to send your precision soaring.
Engineered for comfort
Ergonomic right-hand design is perfected with rubber grips providing added control and comfort.
6 buttons to customize
From thumb buttons to scroll click, 6 different buttons allow you to customize your gaming experience—so a win is always in sight.
Scroll to success
Precisely control the scroll wheel with 24 detents engineered for zooming in, weapons selection, and line-by-line scrolling
Light up your next move
Customize your mouse with your choice of LED lighting. There are 8 colors and 4 effects to choose from.


Product color
Dimensions (W x D x H)
5.04 x 2.92 x 1.62 in
Package dimensions (W x D x H)
7.80 x 5.12 x 2.76 in
0.26 lb
Package weight
0.42 lb
Compatible Operating Systems
  • Windows 7
  • Windows 8
  • Windows10
Minimum System Requirements
  • Available USB port