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Interface type :USB
The connection method :3.5mm audio jack
Battery capacity :750
The power supply mode :Built in lithium battery
Frequency response range :40Hz-20KHz
The output power :3w
Signal to noise ratio:≥70db
Vocal tract:2.1
Bluetooth protocol :2.1
Shell material :Plastic
Appearance size :122*100*100(mm)
Display screen:No

