hifiman sundara hi-fi headphone with 3.5mm connectors, planar magnetic, comfortable fit with updated earpads-black, 2020 version hifiman </br>specifications</br></br>frequency response: 6hz-75khz</br></br> impedance: 37 ω</br></br>efficiency: 94db</br></br> weight : 372g</br></br>accessories</br></br>headphone cable (1.5 meter or 4.9 feet; 3.5mm plug)</br></br>earpads:1 pair (on the headphone)</br></br> 6.35mm headphone adapter</br>