Low energy anti-lost alarmFollow the car in the parking lot to recover lost itemsSize: about 38x38 * 7mmAs a self-timer remote shutter, it's easy to capture precious momentsMobile search and recordingCompact and lightweight design1. Anti-lost device for accessories (such as keys, luggage, etc.), can also be used as a self-timer remote control, very convenient.2. Alarm reminder to prevent your items from being lost;3. Anti-lost device for children or the elderly, in a complex environment (such as shopping, travel, etc.) alarm reminder to prevent loss.4. The anti-lost device is hung on a child or pet, enjoy the time of play, and control the intimate distance at any time.5. With the new Bluetooth 4.0 chip, low power consumption. The button battery is replaceable, and the slim body is only 8 grams. Can be placed in the wallet.6. Support IOS system and Android system (must be paired with mobile APP and anti-lost Bluetooth). Remarks and comments:Allow 1 to 2 cm of error due to manual measurements.Colors may show different differences, please understand.