Have you ever been troubled by theft? Or sometimes forget where have you put your things? Now, things will changed just because this product. It consists of two parts: One is the receiver, another is the transmitter. You own the receiver, and the transmitter is put on the projected object. The receiver reminds the host by warning tone and vibration if the transmitter is away from the receiver beyond the distance to set at your option. The product is suitable for the mobile, wallet, baggage, pets and your kids, xxxxx is a good partner in your daily life! Description: Transmitter: 24.5(D)x7(T)mm Weight: 6.5G Receiver: 60(H)x36(W)x15(D)mm Weight: 35.5G Battery: 7#x1 Package specification: 200(H)x80(W)x17(D)mm