Features: An excellent replacement Compatible with door opening buttons or other switches on devices. An automatic switch Compatible with automatic regulation, safety protection and circuit conversion. Sensitive Compatible with receiving signals, 315M and 433M radio frequency are available to choose from. Made of high quality ABS material, safe without noise and sparks, corrosion resistant, moisture resistant and vibration proof. Universal, can be widely used in aviation, marine, automotive, home appliances, machine tools and other automatic control areas. Lightweight and compact, easy to use. Specifications: Material: ABS Weight: 55g Input: DV 10 - 14V Standby current: < 5mA Radio frequency: 315M, 433M Receiving sensitivity: > 97dBM Memory number: 50 Remote control type: Learning code, Fixed code Circuit board size: Approx. 35 * 30 * 18 mm Packing list: 1 * Wireless circuit board relay 1 * Remote control