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Contact Supplierbluetooth : bluetooth v4.0/4.2
operating distance :  ≤10mÂ
built in battery : 5000mah
output power: 3w×2
audio input: bluetooth/aux
frequency response: 90hz-20khz
usb charger:1pcs usb cable
support protocol: qi/a2dp/avrcp/fp/hsp
sensitivity: 80db±2db
signal & noise ratio: ≥70db
item size:107*106*37mm
wireless charging output power:5wÂ
maximum wirless charging distance: 8mm
battery charging cycle times:  ≥300 times
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