Features:·Wireless control LED lamp string, Christmas tree light string, light control switch·Long range working voltage·Ultra low power,High sensitive response..Operating Voltage: DC 3V-24V.Encoding : EV1527 1527 Learning codeSpecification:Working voltage: DC 3.6V~24VMaximum load: 2AStatic current: 3.6 mA ~ 5.5mAWorking frequency: 433MHzReception sensitivity: ≥ -107dBmSize: 22.5 mm x 11mm x 8mm (length × width × high)Mini size support coding format 1527 learning codeInput: DC 3.6V ~ DC 24VOutput: DC 3.6V ~ DC 24VModulation mode:ASK (superheterodyne)Appearance size: 22.5mmx 11mm x 8mm (length × width × high)Number of stored remote controls: ≤ 10Working mode: Momentary, Toggle, Latching ModeLearning style: Learning ButtonWorking temperature: -20 degrees 80 degrees.Package 3 Included:  1 Pcs * Mini Wireless RF Remote Control Switch Receiver module ( 1527 Encoding )+1 Pcs *    1 Button RF 433Mhz Remote Transmitter