<p><b>Specifications:</b></p> <p>Speaker diameter: Φ40MM</p> <p>Impedance: 32Ω±15%</p> <p>Sensitivity: 104±3db</p> <p>Frequency Response: 20-20kHz</p> <p>Plug Type: 3.5mm</p> <p>Cable Length: 1.2M±5%</p> <p></p> <p><b>Warranty:</b></p> <p>At AILIHEN, you will get worry-free 12-month warranty, 100% money back guarantee and friendly customer service</p>