With its wireless and active noise cancelling ( ANC ) technologies, Bathy's is the perfect travel companion. In addition to isolating ambient noise, it delivers pure high-fidelity sound thanks to its exclusive speaker drivers and integrated USB-DAC mode. Comfortable and refined, these wireless headphones boast a battery life of over 30 hours, fast charging ( 5 hours of additional listening in just 15 minutes of charging ) & a host of features for a total musical escape.