With Logitech's FreePulse Wireless headphones you can enjoy your music without being tied down or tangled up. Integrated volume controls and Bass Boost mode let you take control of your music, while advanced Bluetooth 2.0 with Enhanced Data Rate wireless technology ensures clear, interference-free audio with up to 33 ft. range. Extended life rechargeable batteries provide up to six hours of play time. The high carbon spring-steel headband is lightweight yet rugged, and the soft-touch comfort rings provide a secure fit. The FreePulse Wireless headphones are compatible with most audio players, and include custom-fit iPod adapters, just charge, plug, and play.