2-in-1 Wireless Voice Amplifier Headset

This 2-in-1 wireless headset microphone and voice amplifier system is designed for teachers, lecturers, and tour guides who require clear, reliable vocal projection in dynamic environments. The transmitter features a dynamic cardioid microphone housed in durable ABS plastic, with dimensions and weight consistent with professional wearable use (exact measurements not provided in source; no inference permitted). The receiver operates within the 2.2–2.48 GHz ISM band using GFSK modulation, offering carrier stability of 1 in 10,000,000 and high sensitivity at −93 dBm. Audio performance includes a wide frequency response of 40 Hz–18 kHz, ultra-low total harmonic distortion plus noise (