The Mackie MP 220 BTA In-Ear Monitors are perfect for musicians, sound engineers, and anyone who needs high-quality audio on the go. With a professional design, dual precision drivers, and Bluetooth connectivity, these monitors deliver powerful bass, enhanced clarity, and maximum comfort. The included accessories, such as a hard case and gold-plated adapter, make it easy to protect and connect your monitors. Technical specs include a frequency response of 20 Hz – 20 kHz, impedance of 16Ω±15%, transducer type of dual dynamic, and sensitivity of 88dB±3dB@1mW at 1KHz.