Okayo C7315 - 96 Ch UHF Wireless Handheld Mic Transmitter 640-664Mhz Hi Tech along with the period correct

along with the period correct magnet stagger

The microphone requires 9V to 52V phantom power for operation

either in live or recording settings

while those heavier than

Okayo C7315 - 96 Ch UHF Wireless Handheld Mic Transmitter 640-664Mhz Hi Tech along with the period correctHandheld transmitter. 640 664MHz. Designed for use with the C 7310 C 7314 range of 40 Watt portable PA systems. Unique design allows it to be stored and charged within a slot at the rear of the PA system. Features Exceptional performance Slimline design Can be stored inside the PA unit for convenient recharging Up to 14 hours use from standard alkaline AA batteries