iASUS XSound 3 High Definition Helmet Speakers Made for iASUS throat mic headsets, smartphones, and portable music players. Delivers solid clean bass and crisp highs, rivaling some of the best full sized headphones. The best on-ear sound quality when installed touching your ears. Need an increase in volume? Add our EAR3 Mobile Amp, sold separately. 40mm drivers tuned and packaged in a thin lightweight aluminum chassis (0.99cm/0.39" thin, 34g/1.2oz, outside diameter: 4.5cm/1.8") Varied length Kevlar-reinforced wires stands up to 10lbs of pulling tension. Left wire - 40cm and right wire - 20cm for a tidy install. Includes both foam and comfort covers, spacing pads, and velcro for a proper installation for the best results and help eliminate wind and engine noise.