Founded in Northern California in 1993 by Olympic Swimming Champion Pablo Morales, Phoenix provides training tools to swimmers and coaches around the world. Today, the brand is known for its underwater MP3s, and Phoenix products are sold in more than 60 countries and are used by Olympic teams, triathletes and slim swimmers in the United States and beyond.
 
Among them, Neptune bone conduction underwater MP3 has won the 2013 Red Dot Design Award, and the quality is solid and stable. As you can see from the name, unlike the general underwater MP3, it uses bone conduction technology, which only needs to be fixed on the tape of the goggles when worn, which can not only avoid the discomfort caused by wearing the headphones for a long time, but also ensure firmness, and the streamlined shape of the headphone unit will not bring obvious resistance in the water. Bone conduction headphones have relatively good sound quality when submerged, but they are easily disturbed by external noise when they are on water.
 
As a professional swimming equipment manufacturer, Neptune is also very waterproof, and can last up to 2 hours at a depth of 1.5-30 meters above the water surface, far exceeding the half hour stipulated by the IPX8 standard. It only supports MP3, AAC and WMA and other lossy music formats, with 4G memory, battery life of 5 hours, and the price of about 600 yuan makes it slightly less cost-effective than Tayogo's waterproof MP3 series.