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Hand Mike Handheld Lithium 619U Megaphone
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MP3 Play/ Speaker/siren(or music)/record Built-in mic
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USB socket to play MP3, built-in MIC
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120 seconds big-capacity recording
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Volume control, recycle play MP3.LED indicator
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18650 rechargeable battery 1800mA included in the body,
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1800mA battery support speaks 10hours/MP3 play 5hours/siren 2hours.
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attach rechargeable battery &recharger
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extra-recharger base for 18650 is for optional
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SD socket is for optional,extra-mic is for optional
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Made in China