Decisive advantages Metal surface and mouse wheel Option of connecting via Bluetooth or a 2. 4 GHz wireless receiver - both with AES-128 encryption. Highly precise sensor with resolution adjustable in four stages 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 via USB-C Extra-small nano receiver for wireless operation 6 buttons and a scroll wheel Incl. practical transport pouch