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-Loudspeaker output:3w
-Sensitivity:82±3db
-Loudspeaker impedance:4Ω±15%
-Kistortion:0.5%
-Lithium ion battery output:5V
-Suitable ambient:0℃±40℃
-Lithium ion battery input:4.2V±0.05V
-Dimension:8.3CM*7.3CM*10.3CM
-Weight:80g(including batteries)
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