Product information Product model: C-18 Number of keys: 11 keys Tracking system: laser USB cable length: 1.8m Working voltage/current: 5V-100mA Button life: ≈10 million times Roller life: ≈1.2 million revolutions Product size: 110*72*76.5mm Resolution: 1500-2500-4000-7000-10000DPI Return rate: 125-1000Hz Packing list Mouse *1