inputs.text: highly recommended - bought nui dolphin waiting year quality waterproof mp3 come not disappointed pros light small clips goggles no worries getting tangled wires swimming good sound easy load songs drag drop using windows explorer no software install cons first pair included waterproof headphones not produce sound one ear contacting nui promptly replaced free charge good place mp3 swimming player clipped goggles front swimmers ear hurts ones ability execute proper streamline technique walls cannot tight ears rec swimmers not big issue competitive swimmers might lead poor habits overall well made product made lap swimming much enjoyable