... R01 all of the usual benefits of in-ear monitors – comfort, portability, and noise isolation. The 10.7mm dynamic drivers produce ... and full bass, a warm and pleasant midrange, and crisp and balanced treble while the high-quality construction and wide variety of included ear ... iPod, the ViSang R01 is sure to please both the ear and the wallet.Technical specifications: Driver units10.7mm (CCAW Drive ...