4 Mini DC3.5V ~12V Relay Receiver with 1 RC Button Switch Transmitter

Small and compact wireless remote control kit for your small loads (under 10W) momentary function switch. Design for any 3.7V 5V 6V 9V 12V device or light. Save yourself time by using a wireless remote to switch on your load from a distance.
Features
Simple relay that is easy to install and looks super cool.
Perfect compact design for any low voltage device or light.
Strong signal controls receiver from any place within a reliable distance.
Eliminate the trouble of messy wiring and time consuming work.
Each unit has its own independent and unique frequency.
It covers application ranging from like auto door, window, lifting equipment, entrance access, etc.
Transmitter with built-in battery, receivers without cover.
Working ModeMomentary Toggle Latched adjustable (315Mhz) / Momentary Latched adjustable (433Mhz) Encoding Type: Learning Dot to add Transmitter Normally Open Port (NO) Common Port (COM) Normally Close Port (NC)
Specifications
Item Type Switches
Remote Distance 20 ~ 100m
Voltage Range 3.5 ~ 12 V
Product Size 25 x 11 x 8 mm
Package Contents 4 x Receivers1 x Transmitter