[Without Box]
[Working very well]

Features

• Active Noise Cancellation: Up to 40 dB noise cancelling with 2 modes - Faint (+/- 25dB) & Extreme (+/- 40 dB) through manual adjustment via OnePlus mobile or HeyMelody App.

• High Quality Sound: 11mm dynamic drivers acoustically tuned for bigger, bolder beats with razor-sharp treble & Dolby atmos support delivers immersive, true-to-life sound using industry leading spatial audio. Supported Audio Format(s): SBC, AAC

• 3-MIC ENC Call Noise Reduction: To keep your calls sounding smooth, the 3-MIC design trims down wind noise caused by air friction. It sharpens voice-pickup & cuts down surrounding noise for crystal clear speech.