Metal surface and mouse wheel 

Connects via Bluetooth® or 2.4 GHz wireless with AES-128 encryption 

High precision sensor with four-level adjustable resolution up to 3,200 dpi

 Works on nearly all surfaces, including glass 

Status LED shows low residual battery charge, charging status and resolution

 Lithium battery can be charged per micro USB Extra-small nano receiver for wireless operation 6 buttons and a scroll wheel Incl. practical transport pouch