GLXD24/B58A - Digital Wireless Vocal System with Beta 58A Vocal Microphone - Shure USA
GLXD4 Dual Channel UHF Wireless Microphone System 2 Handheld Mic BETA58A BETA 58A Micro For KTV Speech Karaoke Home Family Party|Microphones| - AliExpress
GLXD2/B58 - - Shure USA
Amazon.com: Shure GLX-D+ Dual Band Pro Digital Wireless Microphone System for Church, Karaoke - up to 16 Channels, BETA 58A Vocal Mic, 300 ft Range, 12 hr Battery (GLXD24+/B58-Z3) : Everything Else