I bought this for my mother who has dementia. I programmed POWER and did CHANNEL UP/DOWN and VOLUME UP/DOWN the same way as just Volume Up/Down. It does not need a channel function. I have not programmed the MUTE button. Even that confused my mother. I want them to make one with only 3 buttons. (not funny) I also tried taking the battery out for about 10 seconds and it didn't forget its program so that's good. The biggest problem I had was that the output beam is too narrow, so it only works if I point it directly at the remote sensor on the TV. In a way it's good if you're very far away as a focused beam is effective at a longer range, but my mom doesn't use it that way. And the damn TV has a remote control sensor on the left, not in the middle. I hope she remembers pointing to the left side, but I honestly don't really think so. Maybe I can try replacing the IR LED emitter with a wider beam angle, or maybe I need to look for an IR repeater. Sigh.
EXuby Digital Converter Box For TV With RF/Coaxial And RCA Cable For Recording And Viewing Full HD Digital Channels Free (Instant Or Scheduled Recording, 1080P HDTV, HDMI Output, 7 Day Program Guide)
12 Review
HOMELYLIFE 600W High Power Voltage Reducer DC 48V 60V 72V Step Down To DC 12V 50A Buck Converter Waterproof Module Car Truck Power Regulator Transformer
12 Review
Germany France Travel Power Adapter,TESSAN Schuko Plug With 2 USB Ports 2 AC Outlets, US To European Europe German French Spain Iceland Norway Russia Korea Adaptor(Type E/F)
17 Review
Kohree 36V To 12V DC/DC Converter Regulator - 10A 120W Golf Cart Voltage Reducer
17 Review