Using your Shokz OpenRun headphones is easy. First, turn them on and pair them with your device via Bluetooth v5. Put the headphones on with the transducers on your cheekbones for the best sound. You can listen to music or take calls for up to 8 hours. When it's time to charge, use the Type - C charging port. These headphones are IP67 waterproof, so they can handle sweat and a quick dip in water, but don't leave them submerged for longer than half an hour. Keep them clean by wiping with a soft, dry cloth. Avoid dropping them or exposing them to extreme temperatures to ensure long - lasting use.