Mackie MP-240 Dual Hybrid Driver Professional In-Ear MonitorsFEATURES Weve been helping artists perform their best for decades with our renowned loudspeaker designs, and now we are bringing that signature sound straight to your ears. MP 240 Dual Hybrid Driver Professional In Ear Monitors feature specially molded enclosures for an ergonomic fit providing hours of comfort and superior noise isolation. The hybrid driver configuration utilizes a combination of dynamic and balanced armature drivers providing