1) 2.4G wireless optical mouse 2) Rechargeable 3) The wireless design extends your distance to 7 - 8 meters 4) Elegant design, stands as receiver and battery charger 5) Be free from interference by other wireless mice used near 6) You can choose the functions you need for the programmable buttons and the scroll wheel 7) Mouse dimensions: 91 x 48 x 30mm 8) Charger dimensions: 100 x 65 x 20mm wireless mouse-Reachargeable Smart power mannagement for power saving with wireless mouse It have the scroll wheel