64 Audio Nio In-Ear Headphones - Open Box64 Audio's first high driver count hybrid, Nio is a universal fit earphone featuring a 9mm dynamic driver and a striking blue abalone faceplate. With a sound signature characterized by extended lows and a rich 3 dimensional soundstage, Nios smooth treble and natural warmth will provide hours of enjoyable listening for all genres of music. SPECIFICATIONS Driver Type Count Eight precision balanced armature drivers and one dynamic driver Driver