Bluetooth 5.3 2000 mAh Battery Capacity Upgraded sound quality Ambient light: EQ sound effect, it flashes with the rhythm of music. 4H+ playing time: 2000mAh super big battery capacity bring more than 4h playing time. Noise reduction calls: Actively reduce noise, clear calls even in noisy environments. Lanyard design Line in SD card mode: Line in\/SD card mode, automatically decode normal audio forms.
