Shure BLX1288/MX53 Combo K3E, SM Series Combo, Dual UHF Wireless-System, 1x BLX1 pocket transmitter, 1x SM58 handheld microphone and MX153 earset microphone, up to 3 Systems parallel, Pilottone, antenna-Diversity, Quick-Scan to find free frequencies, condenser MX153 capsule, 20 - 20.000 Hz, omni-directional, dynamic SM58 capsule, 50 - 15.000 Hz, Cardioid, receiver with plastic housing, internal antennas, XLR- and Jack outputs, Audio Status-LEDs, frequencyrange K3E 606 - 7630 MHz