The Vic Firth Bluetooth Isolation Headphones are high-quality stereo headphones, which reduce outside noise levels by 25 decibels. Offering superb stereo sound, these wireless headphones provide a full and tight low end, clean midrange and clear high end. Perfect for live, studio or practice, the broad foam cushions provide maximum comfort for any use. The 500mA builtin rechargeable battery provides approximately 20 hours of use. Using licensed Bluetooth technology, these headphones connect wirelessly to enabled devices, and include a 3.5mm cable and 1/4in adapter for optional wired usage. These are the ideal headphones for any drummer looking for reliable, high-quality hearing protection.