1.【2015·北京卷】B
Revolutionary TV Ears
TV Ears has helped thousands of people with various degrees of hearing loss hear the television clearly without turning up the volume(音量) and now it’s better and more affordable than ever! With TV Ears wireless technology, you set your own headset volume, while other TV listeners hear the television at a volume level that’s comfortable for them. You can even listen through the headset only and put the TV on mute(静音) if the situation calls for a quiet environment —maybe the baby is sleeping. Or perhaps you are the only one who is interested in listening to the ballgame.
