One Step Pairing After successful connection with T1, iOS users please do not quit the setting interface, the phone will pop up"DESTEK T1 Mono" and would like to pair with it, make sure to click "Pair" to complete the pairing process. If you miss the pairing popup, please return to the Bluetooth setting interface to complete pairing. IPX7 Waterproof IPX7 waterproof makes it secure for your intense workout, whether sweating out in the gym or running in the rain. To keep the vocal clarity, please do not flush the horns of the earbuds directly, or the sound quality will be affected. Wearing Tips Let the memory ear tips rest 30 minutes before using, and rotate the earbuds to keep them snugly fit your ears which can better boost the sound.