NKL Bluetooth 400 headphone Mic for Phone Calls Bluetooth Headset Bluetooth(Black, In the Ear)
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One-touch listening with Bluetooth and Up to 20 hours battery life for long listening hours, Changing Time Approx. 4.5 hrs 9mm neodymium drivers for dynamic sound, Frequency Response 8 Hz–22,000 Hz Comfortable behind-the-neck style with cable management Vibration for incoming call to get alert for every call Bluetooth Technology: Bluetooth specification version 5.1
