Buy Wireless Mic with ON-OFF switch and Wireless receiver circuit module
SWM20-U2 Series 200-Channel Professional UHF Wireless Microphone System – Sound Town
SWM01-U2HH | Rechargeable Wireless Microphone System, Bluetooth, Effects, 1/4" Mini Receiver – Sound Town
Stage Right by Monoprice 200-Channel UHF Dual Handheld Wireless Microphones System - Monoprice.com
REPLACEMENT PARTS MICROPHONE Cover Screw On Cap Mic Battery Cover Wireless Mic $6.09 - PicClick AU
Stage Right by Monoprice 200-Channel UHF Dual Handheld Wireless Microphones System - Monoprice.com
SWM15-PRO Wireless Karaoke Microphone Mixer System w/ HDMI ARC, Optical, Bluetooth – Sound Town
Replacement Wireless Mic Handheld Transmitters
SWM16-KM 16 UHF Channels Wireless Microphone Karaoke & Mixer System – Sound Town
Amazon.com: MicrocKing Wireless Microphone System, UHF Cordless Mic Set with 2 Handheld Mics/2 Lavalier Bodypacks, Metal Build, Fixed Frequency, Long Range, Ideal for Karaoke/Party/Wedding/Concert : Musical Instruments
Sennheiser EW-D 835-S SET Digital Wireless EW-D 835-S SET (Q1-6)
Amazon.com: Pyle UHF Wireless Microphone System Kit - Dual Professional Battery Operated Handheld Dynamic Unidirectional Cordless Microphone Transmitter Set w/Adapter Receiver - PA Karaoke DJ Party PDWMU214 : Musical Instruments
PTU-7000 Quad Wireless Microphone System - Phenyx Pro
AOOOWER Wireless Microphone for Shell Housing Cover For shure PGX24 PGX2 And Other Mic - Walmart.com