1. Ultra Thin Wallet Tracker, Your Wallet Again 2. Wireless Charging 3. In The Connected State, Open The "Find" App That Comes With The for Or for , Click The "Play Sound" Button, The Device Sound A Reminder, And Quickly Find The Item According To The Sound Reminder 4. Anytime,Anywhere With Find My Web Tracking, You Can Always See The Location Of Your Items On The App That Comes With Your for Device. 5. Works With for Find My Network Battery Capacity:170mAh Interface:Wireless Charging Applicable People:for Device Users Wearing Method:Card Holder, Wallet, Passport, Etc. Compatible Platforms:Ios Function:Bluetooth Connection Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use. Colour:Black Material:Plastic Package Contents: 1 * Locator 1 * English 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 measurement allowed error is +/- 1-3cm.