Specifications Hign-concerned Chemical:None Wireless Communication:RF Use:TV,Air Conditioner,Computer,Universal,Projectors,Audio / Video Players,Camera / Video Camera,Speaker,Lighting,Electric Door,Automated curtains Origin:Mainland China Note: 1.This remote control only support the learning code (1527) of the receiver 2.This remote can not be programmed. 3.It will not work if you only buy the transmitter. it is parts of the remote control system, it needs work with the Remote Control Relay Receiver module to achieve controlling. 4.We don't offer retail package, but we will pack it well before shipped out. Specifications: Operating RF Frequency: 433MHz Coded System: 1527 Learning Code Working Voltage: DC 12V Working Current: 12mA Transmitting Power: 10mW Wireless Operating Distance: 150m(Free Space) Transmission Rate: 50 ~ 60KHz Frequency Deviation: +0.2MHz or -0.2MHz Oscillation Resistance: 340k Color: White Package Size: 9.3 * 4.2 * 1.6m / 3.66 * 1.65 * 0.62in Package Weight: 40g/1.1oz Features: *Adopts built-in 1527 working chip, fully compatible with receiving module with common learning code(1527) Chip, such as, PT1527, EV1527, etc. Compatible with the most of 1527 Remote Control Relay Receiver Module, If the remote control is lost, buy one and pair with the receiver is OK.). *Adopts radio frequency technology and stable circuit, high accurate and high-effective, individuation and humanization design, bringing you much convenience. *Strong RF signal, high-sensitive and omnidirectional, you can turn on/off the receiver (not included) by the 433MHz remote control (transmitter) from any place within a reliable distance (150m open area). (The wireless RF signal can pass through walls, floors and doors.). * Easy to install and use, the 4 channel remote control system lets you take control of your gadgets, car and home or garage. *Widely Use: It can connect to the electronic control lock, light, fan, window, curtain, motor, car, lifting appliance, motor control, lifter control or other appliances with DC12V. So that it can remote unlock the door, close the light, open or close the curtain, etc.