P.S: Only bluetooth printer can print through your phones, so please make sure that
you are using a BLUETOOTH printer.
(1) Download the mobile printing app
① For iPhone, search keyword "SoonMark" in the App Store.
② For Android phones, input and open "www.smkjjt.com" on your phone
Download the APP from below for Android phones
(2) Open the APP, edit the label, turn on the bluetooth on the mobile phone,connect to the printer and print.