This is a very compact remote on/off switch for models that are more limited in space or that do not have higher Amperage demands.  
 
Specifications:
 
Input Voltage: DC 12V
Operating Frequency: 433Mhz
Max load: 10A
Factory Default: InterlockedBoard
DIM: 45x30.5x17mm
Case DIM: 65x37x22mm
Range: 30m in air
 
Supports momentary or latching operations, user programmable. Full instructions included.