Built to the highest professional standards, the dual balanced armature driver UM2 provides amazing low frequency response and rich articulate mids and highs. Using the same technology as custom ES2, the UM2 is the earpiece of choice for music lovers desiring high-end Westone sound quality at an affordable price. The comfortable Comply foam tips allow for extended use without fatigue. Providing up to 25 dB of ambient noise reduction, the UM2 is the perfect choice for on-stage performing or for personal listening. Equipped with a durable 50" stereo "Y" cord and a 3.5mm stereo jack, the UM2 is also perfect for personal audio devices such as MP3s, CD players, and laptop computers. The UM2 Universal Monitor is the most affordable dual driver earphone on the market.