Bluetooth Headset with Microphone Oppo Enco X2 Black

HiFi evolution: A pure audio experience offered by OPPO and Dynaudio, 11mm dynamic unit for treble and 6mm planar diaphragm unit for bass. BES Chip: Co-created innovative circuit noise cancellation structure, industry-leading signal-noise ratio and total harmonic distortion (THD) performance. Hi-Res: The end-to-end high-resolution audio transmission between Delphinus and Find X4 meets the HiRes Audio Wireless certification standards. Active Noise Control: Active cancellation of deep (up to 40 dB) and wide-frequency (up to 3 kHz) noise. Fast Charging: Charge for 5 minutes, listen to music for 2 hours. Long battery life: Up to 40 hours of music playback. Seamless auto switching: Switching between multiple devices is now easy and seamless. IP54: IP54 dustproof and waterproof rating.