Rechargeable wireless mouse $ 10.46 Engine: game level engine Connection: 2.4GHz DPI: 800-1200-1600 Number of keys: 7 Foot patch: 4 groups of UPE foot stickers Interface: USB Flank: electroplated double wing Backlight: seven color circulatory breathing Size: 128.5 * 75.5 * 39.5 (mm) Battery: rechargeable battery