Audio Technica ATH-CKM55 Dynamic Inner Ear Headphones - WHITE [Electronics] Built-in stabilizer reduces unwanted vibrations and delivers pure tones Comfortable, ideal-fit earpieces provide noise isolation and prevent sound leakage Gold-plated mini-plug for exceptional corrosion resistance, superb conductivity and low noise Frequency response: 5Hz - 24kHz Includes pouch, interchangeable ear tips (XS/S/M/L), and 0.6m extension cord