Purchased from Akachan Honpo and used only once, then stored in the box. The box has some stains, and the backing card is torn. Please check the condition in the photos. The button battery will be left inside, and the box will be folded for shipping. *Please note that this is a used item, so please purchase only if you understand. We will ship it as compactly as possible. This device monitors for harness belt escape, being left in the car, temperature, and provides break notifications. It alerts your smartphone app when dangerous situations are detected. Compatible products: Only compatible with Cybex child seats. Retail price: 8250 yen