What are they? Watches? Fashional watches? No, actually they are fashionable Waterproof Sport-style Wrist Watches, one of members in Koolertron. They are also built in FM radio, Bluetooth, MP3, and cellphone, portable and convenient to communicate with others while you are doing outdoor sports. What’s more, they come with rechargeable batteries and stereo earphones, make you enjoy music or callings everywhere. Take one, good mood and fun life will be always with you!