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1. Bluetooth version: 5.22. Charging time: about 60 minutes3. Battery capacity: earphone 30mAh, charging compartment: 410mAh4. Music time: 4 hours (noise reduction off), 2.5 hours (noise reduction on)..

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Driver10mm Dynamic DriverFrequency Response20 Hz – 20,000 HzActive Noise CancellationSupportedBluetoothBluetooth 5.2Awareness ModeSupportedBattery & PlaytimeEarbuds Playtime (on one..

Driver 10mm Dynamic Driver Frequency Response 20 Hz – 20,000 Hz Active Noise Cancellation Supported Blueto..

10mm Dynamic Driver 20 Hz – 20,000 Hz Supported Bluetooth 5.2 Supported Earbuds Playtime (on one single cha..

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