Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: Can I turn the volume completely off on the TV and still hear the TV independently from this speaker?
Document: It keeps our mom happy as well. Dad retired from an industrial plant for years and has mid-range hearing loss because of it. The TV Ears speaker allows him to hear the TV without blasting our mom out of the room (Mom has great hearing still!). I like the fact that both this speaker volume and the TV speaker volume can be controlled independently.
I purchased this for my very hard of hearing Mother-in-Law... I set it up in my house to make certain it works correctly. (it does) Turning it up full volume does NOT produce any distortion.I have moderate hearing loss... hard to understand speech. I can turn the speaker down to just a whisper and still understand every word.
I always wonder why the editors don't turn up the voices and turn down all the other noises so you can hear what is being said. Anyway, my mom loves this speaker. She said she never misses the dialogue and it does bring better sound quality to her TV. She said she definitely can't live without it now.My husband also had no problem setting this up. He is a pretty handy electronic guy, but it still doesn't seem very hard for the average person.
This has made all the difference in the way my husband can hear the TV. It is wonderful for everyone else, as it lowered the actual volume on the television to zero. We listen through the TV Ears Speaker . I have already recommended it to a friend. They purchased the same item & are completely pleased.
The sound is clear and of excellent quality. The dialogue is raised above the background sounds. You can mute the volume on the TV and still hear the sound thru the speaker. The speaker is used in our kitchen. At times the kitchen table is loaded with craft supplies/projects stacked in front of the speaker - yet this has NOT affected it's performance. We walk between the receiver and the speaker and this does not affect the sound - no interruption.
I have an LCD tv. I plugged in the transmitter and hooked it up to the optical connection. After placing and the speaker about 15 ft. away and turning it on I was treated with excellent sound. I put the speaker on my left side where I hear best. It is now possible to turn the sound down so that my wife and I can both listen without excessive volume.
This little speaker works great!And it allows me to turn the tv sound completely off andhave the sound where it won't bother anyone else in the house.Totally recommend!
This device works great for people that use hearing aids or are just a little (or a lot) hard of hearing. Had a wide range of volume control. Also looks very nice so it is not out of place on your night stand.Only reason this does not get 5 stars is that the volume is still somewhat tied into the volume on the tv. So if the tv is turned all the way down or muted then no sound comes from the TV Ears Speaker.
Plugged it into my tv through the audio RCA port and still had volume through the tv. Turned on the device and about a 1/4 inch up the volume was very loud for some to hear but is adjustable. Easy to use knob for control no lag. No lag in audio from tv sound and device sound so no echo effect. Also came with ir cable.
This infrared based speaker system solved my diminished hearing problem, so I'm not having to turn the sound up to hear voices clearly. Why are sound engineers making videos with the actors whispering so much? Must be my age, which I won't reveal!I could not get the TV Ears system to work with my Yamaha Sound Bar home theatre setup, even calling their Tech Support. I have to use the Sony Bravia built in TV speakers (2008)  in combo with the TV Ears Transmitter/Speaker.
Answer: Probably yes, but it depends upon how your source (TV or receiver) that is feeding your speaker handles the output.  I have two TV Ears (the headphone type) and both my TVs are able to handle output to the TV Ears (with a constant volume that can be adjusted by the TV Ears) as well as sound from the source that can be muted or turned all the way down.  All relatively modern TVs should be able to do this, but it is entirely a function of the sound source and not the TV Ears devices.