Yes, CHANGERS is a Scrabble word!

Letter values in Scrabble US: C 3, H 4, A 1, N 1, G 2, E 1, R 1, S 1.

Is it a valid word?

CHANGERS is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

a person who changes something
an automatic mechanical device on a record player that causes new records to be played without manual intervention

Also: record changer, auto-changer.