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<br />Bluetooth V4.0  Power bank 1800mah+Support  TF USB +Waterproof+Dustproof +Shockproof+Power Bank+FM function+HiFi+Hand-free Speaker+ Dual Speaker Bass Sound Speakers+Built in mic
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<br />Specifications:
<br />Bluetooth Resolution:CSR 4.0
<br />Frequency Response: 100hz-16khz
<br />Battery Li-ion:3.7V
<br />Battery Capacity:1800mAh
<br />Dimensions: 205*63*43mm
<br />On/Off/Bluetooth switch
<br />Range:upto 10 metres open field
<br />Music Play: 8 hours (middle volume)
<br />Snr:  85db
<br />Standby Time:  90 hours
<br />Weight: 360g
<br />Speakers: dual-speaker stereo
<br />Audio port:TF/USB/AUX
<br />Speaker:Double speakers 4 3W 40mm
<br />FM Frequency Range:87.5-108MHz
<br />Charging time:2.5-3.5 hours
<br />Charging interface:Micro-USB
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<br />Package contents:
<br />1 x bluetooth speaker
<br />1 x usb charge cable
<br />1 x aux in cable