Mackie MP-240 BTA Dual Hybrid Driver Professional In-Ear Monitors with Bluetooth® AdapterThe Mackie MP 240 Professional In Ear Monitors are designed for both performing artists and casual music listeners. For decades, Mackies renowned loudspeaker and monitor designs have been helping artists perform their best. MP 240 Professional In Ear Monitors build on that legacy with incredible sound and build quality for both artists and personal listening. Featuring a dynamic driver paired with a balanced armature, MP 240 In Ear Monitors deliver