Up to 32 dB Active Noise Cancellation: Transcend chaos with the up to 32 dB active noise cancellation of the boAt Nirvana Iris TWS Earbuds. Enjoy your playlists and podcasts with crystal-clear audio for an extra dose of entertainment. Humongous Playback: Listen to your favorite songs on repeat and keep up with the latest OTT content with up to 120 hours of playtime. Nirvana Iris keeps you plugged into the sound without the pesky interruptions of low battery levels. Dual EQ Modes with Crystal Bionic Sound: High-fidelity 10 mm drivers in these earbuds deliver Crystal Bionic Sound powered by HiFi for an immersive experience. For a personalized feel, you can choose either the bass-rich boAt Signature Sound or the engrossing audio of Balanced Mode.