Compatible BNT-881 Bluetooth Headset-Black

Bluetooth:

Version: 5.0, the latest version at the time of its release, offers improved range, speed, and stability.
Protocol: BK5.0, a proprietary Bluetooth protocol used by the manufacturer.
Frequency: Operates in the 2.4GHz frequency band.
Audio:

Support: Supports SBC and AAC codecs, providing decent audio quality.
Driver: Uses a 10mm moving coil driver, common in budget-friendly headsets.
Bandwidth: Has a frequency response of 20Hz to 20kHz, covering the audible range of human hearing.
Impedance: 32 ohms, a standard impedance for consumer headphones.
Sensitivity: 105dB ± 3dB, indicating the headset’s loudness.
Battery:

Capacity: 6000mAh, a large capacity that should provide long-lasting playback time.
Charging time: Takes 2 hours to fully charge.
Playback time: Can play for up to 600 hours on a single charge.