Connection method: Bluetooth
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Wearing method: In-Ear
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Frequency range: 2.4GHz-2.48GHz
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Charging case: 400mAh battery
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Earphone capacity: 50mah
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Charging time for Charging case:1-2 hours
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Music time : about 4 hours
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Call time: about 5 hours
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Connection range:10 - 12 meters
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Speaker Spec: an 11-mm woofer and 6.5-mm tweeter built into every earbud.