"The Pulsar was louder, but it did have the advantage of being powered via USB. When it comes to quality of sound, the Pulsar headphones were lacking compared to the competitors. I tested the Pulsar's mobile ability and I must say I wasn't very impressed; the inline controller and the battery pack were always in the way while listening to my MP3 player. I don't foresee anyone using the battery pack in the future. While it was a good idea in theory, TekNmotion either needs to remove the battery pack or make it more compact in its next attempt."