Spec: Type item: ZTW-21 folding touch mouse Connection method: 4.0 Wireless frequency: 2.4GHz frequency range Wireless range: about 10 meters Size: 131.2 * 55 * 14.5mm/5.16 * 2.16 * 0.57inch (Approx.) Weight: 82.5g with battery Battery: 2 AAA alkaline batteries Connection with the computer: Applicable: Notebook computers Photoelectric resolution: 1600 (dpi) Number of keys: 2 (keys) Interface: Adjustable resolution: four gears Wheel direction: touch wheel Package List: 1 * Folding Mouse.
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