RS608M is a 6Vdc, dry contact, momentary-on relay switch, controlled with a wireless remote transmitter. It can be used with most of 6v dc projects to perform a momentary close contact on your device. Compact size with mounting holes makes it easier for installation.
Come with 1 long range remote key fob and 1 relay switch receiver. 
Requires 6v DC with minimum of 500mA of power source to operate.
proper working voltage is between 6v to 7v DC. switch won't function properly outside this range.
Two options to connect this switch to your project. See diagram in photo section.
This switch is a passive device and does not provide any power to your device, make sure to select a power source with enough power to handle this switch and your device.
Relay contact maximum load handling is 5A.
Relay receiver box's dimension is 1 7/8" x 1 7/8" x 1" (4.7cm x 4.7cm x 2.5cm)
Receiver switch includes color coded electrical wires for easy installation.

An A23 battery is complimentary and included with transmitter
Remote transmitter can be transmitting signal up to ~150ft in range, it has been tested in open space with minimum or no RF interfere in the area.
*stable transmitting range is depend in operating area, RF interference, device setup,  power source strength and remote control battery strength, etc.. and cannot be guaranteed. If use with motorized device, range can be farther shorten due to various current interfere generated from motor device.