Sennheiser EW 100 G4-ME2-A1, Lavalier Wirelesss system. Freq.A1 (470 – 516 MHz) Post author: Post published:July 19, 2026 Continue ReadingSennheiser EW 100 G4-ME2-A1, Lavalier Wirelesss system. Freq.A1 (470 – 516 MHz)