This is a SX70 Remote Shutter #112, it attaches to the SX70 Camera socket.
The box. .
Just a push button, a cable and a plug-
Plugged into the socket of the camera.
The little notice is just on the back of the box.
If you need a longer cable and if you are not afraid of tinkering,
you can cut an existing remote shutter in two and put in an ordinary
2-wire cable. This needs insulating and soldering. Or just take a
2-wire cable, strip some cm on both ends, induce all wires with solder
tin, separate the 2 wires at one end and put the 2 wires of the other
end into the socket holes. To fire the camera, just join the 2 wires of
the free end and hold until the camera ejects. Disclaimer: You should
know what you do and it's at your own risk.