So where have all the wireless rechargeable headphones gone ?

Used to be that nearly every other electronics dealer had some form of wireless headphone, and you placed the headphones on this stand, and it would recharge the headphone batteries whilst not in use.

For the ageing mum-in-law who's going ..going ... deaf, she has the TV volume cranked up to quite loud volumes much to the consternation of her adjacent dwellers in the retirement village.

Cant seem to locate these headphones anymore - I have seen the non-rechargeable versions, but not good for the MIL to handle fiddle-some AAA batteries.

Some kind of rechargeable stand, or I have seen headphones that use a "Battery Pod" that you charge up via USB, and then plug into the headphones.

Some headphones are bluetooth, and I cant quite figure out how to use the headphone socket for bluetooth - do I plug a bluetooth adapter into the headphone socket, like this:

http://www.aliexpress.com/item/Old-brand-audio-bluetooth-transmitter-strong-signal-bluetooth-adapter-for-tv-aptx-hifi-quality-connect-two/32281524004.html

and then match it up with a rechargeable headphone set like this:

https://www.aliexpress.com/item/On-Ear-Head-Wearing-Wireless-Bluetooth-4-0-USB-Rechargeable-Stereo-Headset-Earphone-Headphone-with-TF/32710652566.html

Cheers