Halo Sport is not waterproof. Halo Sport was designed to hold up to sweat and small amounts of water. Do not wear Halo Sport in the rain or submerge it in water.
For best results, wet the Primers before inserting them into the headset. When done using, remove the Primers, dry off the headset with a light cloth. Place your headset in the provided quick-dry case and place in a clean, dry environment.