Oppo W31
- Model(Headphones): ETI11/ETI13
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Model (Charging Case): ETI12/ETI14
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Driver: 7 mm dynamic driver
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Driver sensitivity: 95 dB @ 1kHz
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Frequency response range: 20 Hz- 20 kHz
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Microphone sensitivity: -38 dBV/Pa
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Bluetooth® version: BT 5.0
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Bluetooth range: 10 m
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Battery type: Rechargeable lithium-ion battery
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Battery capacity: 25 mAh (Headphones) 350 mAh (Charging Case)
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Music play time (50% volume): 3.5h (single charge), 15 h (with charging case)
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Charging time: 2.5 h (With Charging Case)
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Weight(Entire Device): 50g
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Charging port: USB Type-C
$85.00
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