Outside Waterproof mp3 speaker bag  high capacity Violet QH-03

   This type bags include standard backpack and bluetooth version. The standard version has the           functions of card reader, mp3 radio. The bluetooth version not only has the function of standard version, but also have the feature of bluetooth function that can play music in the phone , remind call dial and freedom to answer.

    Speaker Specifications: D40mm 3Ω/5W*2

    Power Output:2*5W

    SNR:Better than 88DB

    Degree Of Distortion:3W/CH(5V Power,4Ω load,10%THD)

    Efficiency:Better than 90%

    Channel Balance:Less than 1DB

    STEREO SEPARATION: More than 40DB

    Charge Voltage:5V,3.7V (Lithium battery)

    120HZ-20KHZ   FREQUENCY RANGE:120HZ-20KHZ

    FM RECEIVING SENSITIVITY:LESS THAN 1DB

    FM S/N RATIO:BETTER THAN 60DB

    FM STEREO SEPARATION:MORE THAN 40DB

     FM STEREO LNDICATOR ON SENSITIVITY LEVEL:28DB