This Hitachi RU - 1200JY Remote Control Unit is a great device, but note that a connection cable is not included. There's a known issue where the gain painting function doesn't work.

Using the Hitachi RU - 1200JY Remote Control Unit is simple. Just point it at the device you want to control and use the buttons to operate. Remember, it doesn't come with a connection cable, so you'll need to get one separately if required. There's an issue with the gain painting function, so don't expect it to work. For maintenance, keep it clean and dry. Wipe it gently with a soft cloth if it gets dirty. Avoid dropping it or exposing it to extreme temperatures, as this could damage the unit.