The new NU Dolphin Lite delivered the idea of originality. This new innovation is 100% waterproof. It eliminates all the complicated interface and replaced with absolute comfort which is the most essential element for all athletics. The new stylish headphone wearing methods perfectly match the ergonomic principle therefore it can be widely approachable for all sports activities under different environment. In additional, we challenge the traditional battery concept and allows Quick Power Charge for instant listening, way beyond just convenience! This ultra light MP3 comes with unique design and simple button interface is an ultimate integration of Sports and music. NU Dolphin Lite is a master piece for all athletics!