silent 2.4g wireless portable mouse optical mouse for notebook pc mini silent mouse 1600dpi ergonomic vertical

interface type: usb hand direction: hands model: 2.4g energy type: battery number of rollers: 1 dpi: 1600 operating mode: optoelectronics gross weight: 115 grams number of buttons: 2 dhl interface type: usb hand direction: hands model: 2.4g energy type: battery number of rollers: 1 dpi: 1600 operating mode: optoelectronics gross weight: 115 grams number of buttons: 2 dhl ing