Genius Ring Presenter. Connectivity: RF, 2.4 GHz, 10 m. Energy management: Lithium-Ion (Li-Ion). Receiver: USB, pico. Special features: laser pointer, mouse, Red. Colour: Blue, White. Weight & dimensions: 25 x 33 x 35 mm, 9 g. Packaging data: 140 x 83 x 54 mm