Razer Kraken Pro Over Ear PC and Music Headset, World of Tanks edition Optimized weight for extended wear Fully retractable microphone Powerful drivers and sound isolation for highest-quality gaming audio The left ear cup houses a fully retractable microphone boom that pulls out only when you need it, perfect for taking your headset on the go. The Razer Kraken Pro's large 40mm neodymium magnet drivers are tuned for clear high- and mid-ranges as well as deep bass for powerful lows. A closed ear cup deign with plush circumaural padding creates superior sound isolation so you can focus on your game or conversation uninterrupted by outside noise. The Razer Kraken Pro gaming headset has been field-tested by countless professional gamers and athletes to determine the optimal weight for extended gaming sessions as well as for unparalleled comfort on the go.