A small and powerful 2 channel 12V relay module with 433MHz receiver. Both relays can switch up to 10A in 3 modes (toggle, momentary and latching) and are securely packaged with a 433MHz receiver in a plastic housing.Please note, no remote control is included. Only fixed or learning code (2262 2264 2260 2240 1527) 433 MHz remote controls are suitable, rolling code remote controls are not compatible.Momentary mode (The relay is switched on as long as the button is pressed).Remove the jumper completely.Toggle mode (The relay is switched on at the push of a button and off when the same button is pressed again).Place the jumper on pin 1 & 2.Latching mode (The relay is switched on with button 1 and switched off with button 2).Place the jumper on pin 2 & 3.