Main connection : 3.5mm Cable : 1.2m(3.9ft) Net weight : 161g(5.7 oz) Frequency range : 18Hz - 24KHz Jack plugs available : 3.5mm to 6.3mm(1/8" to 1/4") Impedance : 32 ohms Sensitivity : 108dB SPL/V Max input power : 35mW Specifications are subject to change without notice. Lightweight design with comfort headband for hours of fatigue-free listening enjoyment. Wide dynamic range and exceptional bass response makes them the perfect upgrade for virtually any portable device. Ultra-reliable 99.99% oxygen-free cable. Already tested before shipment. After receiving the goods, if there are any problems.Please contact our customer service Thank you for your support and understanding. 1 x Wired Headphone