100% brand new and high quality. <br>Quantity: 1 <br>HiFi Woofer Speaker,Perfect bass <br>Medical silicone Earmuffs,Perfect isolation from outside noise,Long-wearing still comfortable <br>High-quality TPE cable,Tension high quality wire, the more pure sound output <br>Impedance:32Ω <br>Frequency Response:20Hz-20KHz <br>Rated Power:20mW <br>Power Capability:35mW