| Customization: | Available |
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| Style: | In-ear |
| Usage: | Mobile Phone, Call Center, MP3 & MP4, Game Player |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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| Payment Methods: |
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| Support payments in USD |
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| Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
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Model Number
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M21 earbuds hot sale
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Product name
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Wireless earbud / TWS earphone
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Color
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black/white/pink/purple
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Chipset
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AB5616A3
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B Version
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5.1
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Working time
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3-4 hours
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Operating range
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up to 30 feet(10 metres)
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Battery capacity
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40mAh*2 + 200mAh Charging Box
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Charge case charging time
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1 hours
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Wireless delay time
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41--50ms
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Standby time
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≥100 hours
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Working voltage
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3.0--4.2v
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Speaker Impedance
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32 OHM
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Frequency band
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2.4 GHz
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Microphone sensitivity
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42dB
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Speaker sensitivity
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98dB
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