The RSM custom in ear monitor is a four-driver, three-way design with 2 woofers, 1 mid-range, and 1 tweeter. It has the power and presence to handle any stage, and the clarity and detail to enjoy while on the bus, plane or easy chair.
“This is a review of TTPOD T1E dual dynamic driver in-ear headphones. http://penonaudio.com/TTPOD-T1E-Bass Here you go, another in-ear headphone gem for under $50! Though I was a bit skeptical approaching it, T1E turned out to be another giant killer where this dual dynamic headphone set delivered a sound quality on par with others that cost at least twice or more. When you...” --twister6
“Introduction – The TTPOD T1 is a recent entry into the growing market of dual-dynamic earphones. Selling for only $35 at Penon Audio, the T1’s are the cheapest of all current dual-dynamic IEMs on the market and fall right within the budget category. With tough competition from the likes of the Havi B3 Pro-1’s, the MOE Audio SS01 (which shares a similar design), and the much more expensive...” --Audiophile1811