Xinji STONE M1 TWS Earbuds:

Feature:

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  Surging stereo surround sound

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  Smart Touch control operation

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  Excellent battery life

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  Ergonomic design

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  Fashionable appearance design

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  Wide compatibility

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  Voice assistant

Specification:

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  Input Voltage DC 5V±0.25V

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  Bluetooth Version V5.3

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  Battery Built-in Li-ion Battery (300mAh) for charging case

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  Built-in Li-ion Battery (40mAh) for earbud

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  Charging time 1.5 hrs

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  Talk time 5 hrs

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  Stand time 300 hrs

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  Play time 8 hours（at 60% volume）

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  Speaker Impedance 32Ω±15%

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  Driving unit 10 mm

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  Distance 10 meters

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  Frequency 20HZ-20KHZ