UK ONLY - WANTED - Dead Phonak Roger Microphone with Docking Station at a reasonable price

I would like to find a Phonak Roger with docking station that has a failed battery.

I want to use it to listen to my DAB Radio and can power it via the USB socket on the back of the radio.

Don’t want to use it for anything else so a dead one will be fine.

I have other Roger’s but would like to keep them for when I want to use them as Microphones rather than using the battery up for when listening to the Radio.