When The Product Is Used, First Plug The Usb Terminal Into The Charger With Usb Port. Put The Watch On The Black Circle On The Product. At This Time, The Watch Will Be Magnetically Attracted By The Product To Charge The Watch. Plug In The Product'S Type-C Interface With The C To Lighting Cable, And Plug In The Mobile Phone With The Lighting Interface. At This Time, The Mobile Phone Will Be Charging. If We Need To Use The Card Reading Function, We Need To Find "1-Flashdevice Hd" In The And Download It. When Using The App For The First Time, If A Pop-Up Window Requesting Access To Photo Albums, Recordings, Music And Address Books Appears, Please Click "Allow Access". Insert The Accessories With Sd/Tf Card Into Your Ios Device, Open The App, And Click On The Device To Find All The Files In The U Drive. Line Length:1m Wireless Charging:5w ( Watch Only) Tf Interface:48mbps Max (Maximum Support For Memory Cards 1tb) Sd Interface:48imbps Max (Maximum Support For Memory Cards 1tb). Type-C Socket:Only Type-C To for interface Data Cable Is Supported For Charging And Reading Ios. The Actual Transmission Speed Is Different Due To Different Equipment And Card Types Model:-3060 Sockets:Sd, Tf, Type-C Interface:USB Colour:As Shown Material:Zinc alloy + nylon Size:3.6x7x0.9cm Package Contents: 1 * Wireless Charge-Transfer Connector 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.