Remote control battery type and voltage: CR2032,3V Remote control frequency: conventional 433MHz, customizable 315MHz Code matching method: learning type Host input voltage: DC12V plus or minus 2V, working current about 8mA Host frequency: conventional 433MHz, can be customized 31 5MHz Note: - NO mute and locate function. - (IMPORTANT) Professional Installation Is Highly Recommended. - Please check the size measurement chart carefully before making payment. Weight: about 260g Colour: Black Material: ABS Quantity: 1set Packing list: 1*host cable, 1*LED indicator light, 1*host, 2*remote control, 1*English manual Only the above package contents are included, other products are not included. Note: Reflection of light and different monitors may cause the item's color to be slightly different from the actual item. Measurements allow +/- 1-3 cm.