Fanny Wang Headphones Co. Over Ear DJ Headphones with Selectable Bass Boost, Red Velvet, (FW-2001-WHI-RED) (Discontinued by Manufacturer) Built in 5 Watt solid state headphone powered Amp + 50mm dual plated drivers deliver the cleanest sound reproduction in its class DuoJack: built in, in-line headphone splitter (patent pending) iPhone, iPad and iPod ready with remote and mic Selectable Bass Boost switches on 6dB of rich bone-shaking bass Pass through circuitry allows operation with dead batteries