“ Check out the thread & review here as well: http://www.head-fi.org/t/604971/the-starkey-hf-2-thread-affordable-custom-iem-for-your-phone Intro Not long ago Starkey launched their canal-sized custom in-ear monitor HF-2. I've been lucky enough to get to review it and share my thoughts with the rest of the Head-Fi community. The Starkey HF-2 utilizes a 2-way...” --Staal
First custom earphone in the world with a single 14mm dynamic driver couples with advanced frequency suppression technology (FST). Frequency Response: 10-20000 Hz Impedance：16ohms（including cable） Sensitivity (at 1kHz)：116dB spl (1mW) Important: Due to the size of the driver, people with small ears may not be able to fit. We would need your ear impressions to check for sizes...
General Info Taken From Starkey: Proprietary precision-balanced armatures Dual low, single mid, single high Integrated 3-way crossover Noise isolation -30dB Frequency response: 30-18000 Hz Input sensitivity: 104dB Impedance: 50Ohms Price: $1,048,00 + Shipping 2-year warranty on parts & labor Review: http://www.head-fi.org/forum/thread/494930/review-starkey-sa-43-jh-13-pro-jh-16-pro