13 mm Drivers with boAt Signature Sound: Step into a world of rich, dynamic audio with the boAt Airdopes 131 Gen 2 TWS Earbuds. High-performance 13 mm drivers deliver boAt Signature Sound with deep, thumping bass that makes every beat feel alive.70 Hours of Playtime: From live sports streams to podcast binges and workout playlists -enjoy up to 70 hours of uninterrupted listening. More music, less charging!