Support find Phone Function and Voice Recording Function. Support Bluetooth 4.0 and The effective Range is up to 25m. Track your car on Parking Lot and Retrieve your lost items. Suitable for Wallet, Car, Kids, Pets, Bags, Suitcase or other belongings. Works as a remote Shutter for Self Portrait, Capture the Valuable Moment Easily,Compatible for IOS or Andriod Smartphone. The anti-lost device is a product based on the new bluetooth 5.0 low-power technology. By using the "isearching" APP software, it connects with mobile devices such as mobile phones and other mobile devices through bluetooth. Handbags, etc.) are bundled together to realize the functions of anti-lost reminders of items, finding mobile phones, and can also realize remote control photography, recording and other functions (for example: party photos, selfies, etc.). The effective use distance of this anti-lost device can reach 25 meters in an open area, and even you can use it on babies or pets, you no longer have to worry about them being lost; the button battery CR2032 (not Batteries are included), which can be easily purchased in major supermarkets and convenience stores, and a button battery can work for more than half a year.