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BTH181B

5.5+18 hours music play time(anc on)

6+18 hours music play time(anc off)

IPX5 water-resistant

Touch button

BTH180P

36h music play time total

IPX5 water-resistant

Magnetic detachable earhook

700x700
700x700

BTH188Q

Auto on / off

5hours talk time( at 80% of the volume)

Support aptX / aptX-LL / aptX-HD

IPX5 water-resistant

3 sizes of nose pads

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