Specifications:Operating frequency: 433 (433.92) MHzRated voltage: DC 12VBattery: 12V 27A (included)Size: 54*29*14mmWeight: 28gWorking current: 10mARadiant power: 10mwTransmission Distance: 50-100MPackage includes:4 x remote control key fobs1 x manual4 buttons to control up to 4 gates. The appliance can store up to 4 different remote control codes. Compatible frequency: 433 (433.92) MHzRated voltage: DC 12V Fixed Code.Universal self-learning remote control compatible with remote controls for electric gates, garages. with slide key cover. Copy data faster, it is not easy to lose the codeswith long distance remote control and stable signal. The maximum signal transmission distance in an open environment is 50-100m.It is widely used in industrial control and security fields, such as light, motor, remote control, wireless security alarm, wireless door alarm, etc.Package includes: 4X Remote Control, 1X User Manual