"While the concept of wireless headphones is not new (FM radio frequency and infrared wireless headphones have been in the market for over a decade) these analog transmission methods left a lot to be desired. Static noise, poor battery life and limited range plagued the success of wireless headphones and as a result traditional wired headphones and ear buds have dominated the market. The new Logitech FreePulse wireless headphones utilize Bluetooth 2.0 technology with EDR (enhanced data rate) and promise to improve on all the flaws of the previous technology – but do they work well enough to justify replacing your wired headphones?"These look pretty sweet. The transmitter does seem a bit bulky for the smaller iPods, and unfortunately, it does not seem to work with other MP3 players.