Danalogic I-Fit RIE Hearing Aid, Right, Working, 312 Battery. Used but working Too button turns off and on, lower lever/button turns volume up and down. Got this in an ebay bundle. Danalogic are largely NHS - but it’s used and an older version so it’ll be disposed which seems a shame as it works. That said, Danalogic are hard to program at home for individual hearing needs - so be 100% sure you can program if that’s your intent otherwise you could be wasting your money - otherwise hopefully useful for a quick try / spare parts. Fairly good audio amplification
eBay