Technical Details 
1. The receiver will be kept with the host, the transmitter will be kept with the item which the host wants to protect (Such as Mobile Phone, Purse, Laptop, Camera, baby or pets, etc.). Receiver will sound and vibrate an alert when the protected object has exceeded the allotted distance.
2. User can freely set a safe distance within 0 - 25 meters for protection
3. Helps to prevent purse or baggage from being stolen or left behind
4. Transmitter battery: 1 x CR2032 (included) Receiver battery: 1 x AAA battery (not included) 

Product Description
Consists of two parts: receiver and transmitter. Works and identifies according to the different codes. The receiver will be kept with the host, the transmitter will be kept with the item which the host wants to protect (Such as Mobile Phone, Purse, Laptop, Camera, baby or pets, etc.). Receiver will sound and vibrate an alert when the protected object had exceeded the allotted distance. Helps to remind you before loss or theft occurs. Environment friendly, without radiation. Search function, ring + vibration, sleek, compact, easy to carry. User can freely set safe distance within 0-25m for protection. Can prevent the loss of children or pets. Can prevent purse or baggage from being stolen. Can prevent valuable things from being left behind.