Fangrui Product Details Find Items: The Call Button On The Mobile Phone App, And The Anti-lost Device Make A Sound Reverse Search For The Phone: The Anti-lost Device Button Twice In A Row, And The Phone Make A Sound Anti-lost Disconnection Alarm: The Phone Make A Sound Reminder Location Record: The Last Disconnected Location Record Notice: 1. This Product Is Not A Wifi Product, But A Bluetooth Product. The Mobile Phones Bluetooth Must Be Turned On When Using It. 2. Compatibility: Only Applicable To Ios System. (each Mobile Phone Has Built-in Search Software, No Need To Download Any Software. Working Current:3.7ma Standby Power:consumption 15ua Volume:50-80db (adjustable) Battery:cr2032 Colour:c:white Material:plastic Package Contents: 1 * Anti-lost Device 1 * Lanyard 1 * Pry Opener 1 * Multi-language Instruction Manual Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measure