We developed the Ultimate Ears 4 Pro Custom In-Ear Monitors specifically for emerging artists and audiophiles alike. If you're playing gigs at a local club or performing at church, now it's possible to make the move up from wedge monitors to the detail and versatility you only get with Custom In-Ear Monitors. Ultimate Ear's UE 4 Pro Custom In-Ear Monitors are crafted to fit, engineered for accuracy, and tuned for the way you play.
Input sensitivity: 108 dB @ 1 kHz, 1mW
Frequency response: 5 Hz – 18 kHz
Noise Isolation: 26 decibels of ambient stage noise.
Impedance: 17.5 Ohms@ 1 kHz
Internal speaker configuration: 2 proprietary balanced armatures with 1 passive crossover.
Input connector: 1/8” headphone jack; compatible with all systems