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Sound
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Driver: 12.6 mm dynamic
Diaphragm: PEN (Polyethylene Naphthalate) + PU (Polyurethane)
Codec: AAC and SBC
Tuning: Nothing
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Dimensions: Ear bud
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Ear Bud
Height: 29.8 mm
Width: 18.8 mm
Depth: 18.4 mm
Weight: 4.4 g
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Battery
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Single charge: Up to 7 hrs of listening time. Up to 3 hrs of talk time.
With the case: Up to 29 hrs of listening time. Up to 12 hrs of talk time. 9 hrs in 10 mins of charging.
Compatibility: Ear (stick) charges inside the case. Power case charges with USB-C chargers
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Features
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IP54 dust, water and sweat resistant
In-ear detection
Google Fast Pair
Microsoft Swift Pair
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Dimensions: Case
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Height: 87.1 mm
Width: 29.8 mm
Depth: 29.8 mm
Weight: 46.3 g
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In the box
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Pair of earbuds
Charging case
Type-C cable
Safety information and warranty card
User guide
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Model
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B157
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