... .chargable black colour 2.4g RF mini wireless optical mouse with OEM package design, 2.4g wireless optical mouse with mini receiver in blister ... package, 2.4g RF optical mini 3D wireless mouse, 2.4g 3D mini wireless optical mouse, laser mouse, computer laser mouse ... . very comfortable touch feeling, and suitable for both hands.5. the key's lifetime is very long, over 3,000,000 times ...