H2O Audio launches INTERVAL underwater earphones for Apple Watch

H2O Audio’s INTERVAL underwater earphones for Apple Watch
H2O Audio today announced INTERVAL, the world’s first underwater music and training accessory for Apple Watch – designed specifically to bring joy and motivation to lap swimming. Suitable for first-time swimmers, or seasoned athletes, INTERVAL was designed to allow lap swimmers to enjoy music and audio entertainment, just as the running community has for years – taking the boredom out of lap swimming and training.