SHURE
SHURE BLX288/SM58 Dual Channel Wireless Microphone System with (2) SM58 Handheld Vocal Mics (M17 = 662-686 MHz)
RØDE
RØDE Wireless GO Ultra-compact Wireless Microphone System with Built-in Microphone – Black
Sennheiser
Sennheiser Pro Audio Sennheiser EW 100-935S Wireless Dynamic Cardioid Microphone System-A Band (516-558Mhz), 100 G4-935-S-A
D Debra
Debra Audio Pro UHF 4 Channel Wireless Microphone System with Cordless Handheld Lavalier Headset Mics, Metal Receiver, Ideal for Karaoke Church Party (with 4 Handheld (A frequency))