Mackie MP-220 BTA Dual Dynamic Driver Professional In-Ear Monitors with Bluetooth® AdapterThe Mackie MP 220 Professional In Ear Monitors are perfect for performing artists and casual listeners alike. For decades, Mackies renowned loudspeaker and monitor designs have been helping artists perform their best. MP 220 Professional In Ear Monitors build on that legacy with incredible sound and build quality you can count on. Dual precision tuned dynamic drivers per side provide deep low end and enhanced clarity to keep you in tune with your