This is the TQ-1500, an electronic Go board previously released by National (now Panasonic). It's a large item, but shipping is free. The dedicated Go stones are included, but it's likely not a complete set. Please refer to image 2. The Go stones/board are sensor-based, so placing a white stone signals it's black's turn. The sound and turn switching have been confirmed. The included cards are missing, so other functions have not been tested, but based on its operation, it seems to be working properly. The sound is also clear and distinct. Volume adjustment is not an issue. The surface of the board is also in quite good condition. Please check the photos.