ProtoArc EM02 Wireless Trackball Mouse 0/15° Adjustable Angle GrayA wireless trackball mouse designed for users who want ergonomic comfort and precise control without wrist movement. The adjustable hinge lets you set the angle flat at 0 degrees or tilted at 15 degrees, supporting a natural hand position that reduces strain during long work sessions. Perfect for tight or cluttered desks where a traditional mouse would be impractical.Connects via 2.4GHz wireless receiver or Bluetooth, letting you switch between devices with a single button press. The built-in USB-C port handles recharging, and a full charge delivers up to 90 days of standby time. Five DPI levels (200, 400, 800, 1200, 1600) let you customize cursor speed, while quiet-touch buttons keep clicking discreet for shared workspaces.Itemweight0.79 poundsProductdimensions4.8 x 3.5 x 5.7 inchesPartnumberEM02