Use it for day-long presentations or nighttime performances. Ideal for presenters and performers. It has transparent 24-bit digital audio, extended 20 Hz to 20 kHz frequency range (microphone dependent), 120 dB dynamic range, easy setup, and optional rechargeability. Comes with an SLXD4 single-channel receiver, SLXD1 bodypack transmitters, and an SM35 Performance Headset Condenser Cardioid Microphone. No specific size or weight details provided.