电话铃声放大器/电话铃声

Telephone Ringer Amplifier Ever find that you miss a call because you can't hear the phone ring? Never miss another call with our Telephone Ringer Amplifier! The compact amplifier comes with a twin adaptor and simply plugs straight into your existing phone socket with no wiring and no batteries or power required. A loud bell will ring whenever you have an incoming call. An ideal solution for anyone who has difficulty hearinghis or herphone