Comfortable Bluetooth Speaker Backpack silvery bottom surface with two naturals pattern Q-04
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
Charge Voltage:5V,3.7V (Lithium battery)
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
20HZ-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
