Amazon.com: Ultimate Ears TripleFi 10 Pro Noise Isolating Earphones: Electronics $80 rebate
* Universal body are 3 individual speakers and an integrated passive crossover circuit board directs low-end frequencies to a dedicated speaker for bass
* The mid-range frequencies to a speaker for the vocals & the high frequencies to a speaker dedicated for treble
* changeable ear tips provide -26dB of isolation & passive noise cancellation
* Frequency - Response 10 to 17,000 Hz; Input Sensitivity - 117dB/mW
* Impedance - 32 ohms
Ultimate Ears TripleFi 10 Pro Noise Isolating Earphones $266.73 AR FSSS 
