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bluetooth receives singnal 12M away 2.1 power bass
built-in rechargeable battery,3 hours music play back
Output power (3W*2rms)
Speaker unit: 38MM*2
Power voltage:DV 5V
Frequency response:100HZ-18KHZ
Power supply:usb, li-ion,battery or DC 5V
Product size: 220*35*70MM
Product weight:0.26kg
box size:240*100*50mm
