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Waterproof usb speaker Item net weight: 230 g + 10 g Item gross weight: 390 g + 10 g Whole gross weight: 12.35 kg + 0.3 kg Function: TF card audio input bluetooth phone voice prompt nondestructive support NFC FM radio Parameters: voltage: 3.7 V Battery capacity: 400 mah Charging voltage: 5 v 3 w loudspeaker specification: 40 mm 2.6 ohms Frequency response: 60 hz - 20 KHZ Signal to noise ratio: 95 db or higher Distortion: 0.5% or less Speaker control: buttons Size: diameter of 60 mm, 50 mm high
Waterproof usb speaker Item net weight: 230 g + 10 g Item gross weight: 390 g + 10 g Whole gross weight: 12.35 kg + 0.3 kg Function: TF card audio input bluetooth phone voice prompt nondestructive support NFC FM radio Parameters: voltage: 3.7 V Battery capacity: 400 mah Charging voltage: 5 v 3 w loudspeaker specification: 40 mm 2.6 ohms Frequency response: 60 hz - 20 KHZ Signal to noise ratio: 95 db or higher Distortion: 0.5% or less Speaker control: buttons Size: diameter of 60 mm, 50 mm high
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