New, Unused PetSafe Bark Control ⚠️Please refrain from purchasing if you have negative feedback. ⚠️There are individuals who leave negative feedback in transactions, so please read the product description carefully. Also, please make sure to understand any concerns through comments, etc. RFA-522 Body Size: ・Length 7cm, Width 4.5cm, Depth 3cm ＊With Velcro ・Can be attached to various places such as window and door frames ＊Sensor Reaction ・Reacts to sounds within an 8-meter range of the sensor. ・After the sensor detects the dog's voice, it emits a high-frequency sound and the red lamp on the main unit flashes. ＊Lithium battery (CR2030) ・2 required ※Batteries not included ※Operation confirmed Shipping method may be changed or compact packaging may be used. Although it is a new, unused item, please refrain from purchasing if you are concerned about any dirt, etc., due to storage. ⚠️Please refrain from purchasing if you have negative feedback. ※Price negotiations are not accepted. Returns are not accepted.