Surprisingly big sound pumping out of a small, sturdy package. With speaker drivers specially tuned for big bass, Philips BASS+ Bluetooth headphones deliver great sound isolation and wireless freedom, so you get the most out of your beats | Powerful 12.2 mm speaker drivers | Big, bold bass you can feel | Great sound isolation | Weightless feel, wireless freedom | Wing tips for secure fit | Ergonomic design for max comfort | Remote control for handsfree calls and music | Bluetooth wireless technology | Rechargeable battery offers up to 6 hours of playtime | USB charging cable