Vintage Electronic Musical Flashing Box for the Christmas Tree

Vintage Electronic Musical Flashing Box for the Christmas Tree. Model MX-1600 and MX-500. Electronic music box that continuously plays 16 Christmas carols. It plays 1-2 lines from a song and then switches to another carol. Volume can be adjusted (pic 5) There is a plug receptacle on each side of the box. Warning on exterior of box states not to connect more than 6 sets of 35 tree lights. Includes original packaging and one end of an interior styrofoam insert. The musical part of the box works and the tone is clear with a strong volume. I did not plug a strand of lights into the box to see if they twinkle. Cord is approx. 65" long.