GeekStuff4U has started selling the Ninewave NW-STUDIO PRO in-ear headphones in Japan. These high-quality in-ear headphones feature a pair of 13.5mm drivers that produce a frequency response of 20Hz-20,000Hz, a 110dB±3dB of sensitivity level, a 32-Ohm of impedance. These wearable gadget also offers a 3.5mm 24k gold-plated stereo audio jack and a carrying case. The Ninewave NW-STUDIO PRO in-ear headphones are priced at $272.80. [Product Page]