Olens Technology's Renny The Original Bluetooth Home Ringer will work absolutely anywhere in your home by simply auto-connecting to your mobile phone when it's within 200 ft, wirelessly. You won't miss another call even if your phone is in the car, upstairs or lost behind the couch; and it does this for two device, with DualSync technology that allows you to connect two mobile phones at the same time
Renny the Original Bluetooth Home Ringer could be a solution. It connects wirelessly to any mobile phone within 200 feet -- even if the phone is set on silent or vibrate. Then it rings loudly, and also announces who's calling. It allows two mobile phones to be connected at once, and you can answer calls hands-free without finding your mobile phone. You can even stream music from your phone to the Renny base station's loudspeaker.