Features:1. Supports insert TF card， Bluetooth connectivity and Bluetooth phone function， convenient and practical;2. This product is useful in riding， running， playing tai chi and other sports wear， let the music is everywhere;3. The silicon strap design， scalable， put tape on the wrist， but also can be placed on a bicycle;4. products for four waterproof， do not worry about sweat and slight rain;5. In addition shape unique to watch Bluetooth speakers， exterior coating rubber paint， feel good;6. excellent sound quality， more convenient than the headphones during exercise， better sound quality than Bluetooth headset.Specification:Model: MS13BBattery: 380mAhRated Power: 2WFrequency Response: 80-20KHzColor: rose red， purple， blue， blackPackage Include:1 x MS13B Mini Watch Bluetooth Speaker1 x USB Charging Cable1 x User Manual