Specifications

The device is mainly used in swimming and all kinds of waater activities. With a player weights less than 11 grams

MP3/WMA format
2 meters depth for 2 hours in water, meet IPx8 standard for both player and the waterproof earphone
Plug-PowerOn circuit design for easy of use in water or in sporting
Necklace type like pendant
Earbuds bundled for various ear size users