2 Denon Telephone Ringer/Flashers (Sturminster Newton DT10)

2 Denon Telephone Tone Ringer/Flasher units, one brand new made in China, the other old made in the UK (which will tell you how old it is). These units are for increasing the volume of your landline telephone bell. Our old one appeared to stop working so we bought a new one, not realising that neither would now work on our phones since we've been transferred to digital voice!
If you're still on landline and need a louder bell, then they should work for you.