Nady ENC Duet HT/LT/O 2-Channel VHF Wireless Lav/Handheld Mic System - Channel A / F 171.905 MHz-203.400 MHz
Amazon.com: Pyle Dual Channel Wireless Microphone System - Portable VHF Audio Mic Set with Clip Lavalier lapel, Handheld, Headset, Transmitter, ¼'' cable, power adapter - For Karaoke, PA DJ - Pyle Pro