Aquapac 100% Waterproof Headphones Yes, you can listen underwater! For example while snorkeling. The sound quality is amazing! Each pair comes with 3 different sizes of silicone earbud to make sure they fit your ear canals (everyone's are different!) Now fitted with silicone earloops to keep them firmly in place. 3.5mm nickel-coated stereo jack. Frequency response: 19Hz - 20KHz. Impedance: 32 Ohms. Audio Pressure Level: 100db (1kHz/1Vrms). WARNING Although tested waterproof to 30ft (10m) you should not use them at depths greater than 10ft (3m) where the pressure could cause hearing damage.