Features: Brand new and high quality A great replacement for door open button or other switches of devices, widely used in elevating controller, automobile, household appliances, machine tools, alarm system and other automatic control area. An automatic switch for automatic regulation, with self-lock function, allows safety protection and circuit conversion. 315MHZ, 433MHZ frequency ensure sensitive and strong signal receiving and transmission. High-quality plastic material and professional PCB circuit board, safe without noise and spark, anti-corrosion, moisture-proof and anti-vibration. Equipped with a portable remote control for easy and remote operation. The signal can pass through walls, floors, doors, and stably control the receiver anywhere within a reliable distance. The maximum range is up to 50m (without obstacles). Light and compact size for perfect portability and adaptability, easy to use. Specifications: Product name: DC 18 way remote control switch Working voltage: DC 12V-36V Signal frequency: 315MHZ, 433MHZ (optional) Package Includes: 1Set x Wireless Remote Control Switch note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!