ATH-CK90PRO : ATH-CK90PRO, High-end In-ear Earphones

Thanks to a newly design horn shape named “Acoustic Horn,” the ATH-CK90PRO in-ear earphones from Audio-Technica offers its owners a perfect sound quality with minimal interference from the outside world. Specswise, the ATH-CK90PRO has an output of 111dB/mW, an impedance or 37Ω, and weights only 4g.