Product details of BOMGE Dual Wireless Microphone System Headset Mic/Stand Mic/Lavalier Lapel Mic with Rechargeable Bodypack Transmitter & Receiver 1/4" Output for iPhone, PA Speaker, DSLR Camera, Recording, Teachi* COMPATIBLE DEVICES:Wireless receiver with universal 1/4” plug works with mixers, PA speakers, karaoke machines w/ 1/4 MIC IN for voice