Hybrid ANC Say adios to the chaos with Active Noise Cancellation feature and elevate the vibe to a whole new level of pleasure with Rockerz 551ANC, delivering up to 35dB Hybrid ANC. Play back Stay connected to your playlist for mammoth durations, every day with up to 70 hours of playtime in ANC mode and up to 100 hours in normal playback mode. ASAP ChargeThis headphone comes equipped with our ASAP Charge technology that helps it garner 10 hours of playtime in just 10 min of charge.