Size: height: 65mm, width: 35mm, thickness: 7mm. Weight: 15g. Made of high quality PU material, durable. Contact uses silver plating, super wear-resistant, use for a long time didn't wear; Circuit board uses environmental protection PCB materials; In similar products is high power infrared transmitting tube, launch furthest distance; Import advanced lithium electricity, stable long-term use; Under the normal temperature emission can be up to 25 meters, controllable frequency can reach about 50000 times