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 built-in 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.