Sanwa Supply Wireless Microphone MM-SPHMW4 Part 1

This is a Sanwa Supply B-band 800MHz analog wireless microphone. You can select one channel out of 10 available channels.
It is primarily designed for use with Sanwa Supply's PA speakers MM-SPAMP4 and MM-SPAMP7, but I used it with a SONY receiver (WRR-840). It was also receivable with a TOA B-band receiver, but the sound was a bit strange. Please use it with receivers other than the genuine one at your own risk.
There are two available, so I will list them one by one.

Model: Unidirectional Dynamic Microphone
Transmission Frequency: 806.250-809.750MHz
Tone Signal: 32.768kHz