This chromatic tuner and pick-up are brand new in the boxes. They are being sold together, as harp players almost never tune without a pick-up.
The tuner is a Korg CA-1, an extremely popular tuner. The pick-up (just the term we use) is a Korg CM-200 Contact Microphone. They work great together. I use mine every day. The tuner runs on two AAA batteries (supplied).