Tools...Other Relay Sound Sensor Unit KIT for Enthusiasts PS-3001S EK Japan EK Japan Co., Ltd. Unit KIT for Enthusiasts PS-3001S This product was purchased a long time ago and has been stored as is. It is a complete set of circuit boards and parts for assembly. The manufacturer has discontinued production. It is a discontinued product that is difficult to purchase. Since it is an unopened item, the operation has not been confirmed. Please understand this beforehand. The color of the blister pack has changed. It was stored in a drawer, so it is not sun damage. Please check the condition by looking at the photos. Everything in the photos is included. Thank you. Negotiations on the price of items under 3000 yen are not accepted. We will not respond to comments, so please understand. If you have any questions about the product, please contact us through the comments. We will respond to the best of our ability. Returns and cancellations after purchase are not accepted. (Please use NC NR) As this is a personal listing, responses may be a little slow. Thank you for your understanding.