4 Channel Wireless Remote Control Switch System + Receiver DC 12V 315MHZ testing 

Remote control parameters:
Operating voltage: DC 12V
Operating frequency: 315MHZ
Size: 6 x 3.5 x 1.2 cm
Remote control distance: 50 meters (open space with no interference)
Battery: 27A battery (included)
Receiver board parameters:
Operating voltage: DC 12V
Operating frequency: 315MHZ
Match code: intelligent learning type
Internal size: 6.9 x 4.8 x 1.8 cm
External packing size: 7.5 x 5.5 x 2.9 cm
Working mode can be set to inching, self-locking, interlocking