Features: Brand new and high quality Suitable for 12-48V power, making it suitable for wide applications. Perfect for controlling Light, motor, and security devices. Experience the convenience and versatility of wireless control with this durability and efficient switches. This 18CH remote control module offer multiple different working model to suit your needs. Enjoy the convenience and flexibility of wireless control with this lightweight remote control module. Specifications: Material:ABS Type:1 Remote Control/2 Remote Control Working frequency: 315MHz/433. 92MHz. Demodulation mode: ASK Working voltage: 12V-36V Current: <10mA Receiving sensitivity: -105dBm Relaying Receiver:Approx.175x87x18mm /6.89x3.42x0.7inch Remote Control:Approx.135x52x15mm/5.31x2.04x0.59inch Package Includes: 2 Optional Package: Package 1 Include: 1Pc Relaying Receiver 2Pcs Remote Control Package 2 Include: 1Pc Relaying Receiver 1Pc Remote Control note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.