Given someone a token gift just to say thanks can mean a lot. You don’t have to spend loads of money on it just something that says “Thanks” or “I’m Thinking about you” or “it was great working with you” whatever the occasion here are some token gift ideas.
If you want to add something extra you could always get a Spotify voucher along with the bluetooth speaker for music lovers or podcast listeners.
Or maybe just help them install the spotify free app on their phone!!