1WELCOMEThank you for purchasing the new IPX8 waterproofswimming MP3 headphone S22. In order to avoiddamage due to incorrect use, please read theseinstructions through carefully before using the device.Please pay particular attention to the safetyinformation. If you pass the device on to a third party,these instructions must also be handed over.Any more problems, please feel free to contactsupport@agptek.com.HOW TO CHARGE1. When the battery is low, theLED indicator will flash red every10 seconds, please charge it.2. Connect the headphone to arunning computer or 5V/500mAcharger (not included) with theincluded USB cable.3. The charging time is 2 hours.While charging, the LED indicator will stay red. It will gooff when fully charged.Notice: Please keep the magnetic charging port dryand clean. Please do not charge your device right afterexercising in prevention of electricity leakage causedby remaining water or sweat.