Wireless unit for MMCX-compatible earphones. (Earphones not included.) There are fine scratches and signs of use overall. The L side unit can be used without any problems. The R side can also be used without any problems, but there is looseness due to a crack in the joint, and the wires inside are visible when bent strongly, so please consider it as a junk item. The case charges without any problems, but the zipper gets caught at the end, and while you can take the earphones in and out, it cannot be fully opened.