EMD 1000 Echo power mick             

Mere info:

A stylish amplified microphone with echo effect.

The amount of echo can be varied using the slider on the front of the mic, from too much when set to maximum to none when on minimum (at which point it just acts as a power mic).

Twin presets in the rear allow you to adjust the output level (volume) and the echo delay. Being able to adjust the delay enables you to get the optimum sound from the echo.

Similar to the old Pama Voicelab echo/power mic.

Uses a PP3 9Vbattery.

Supplied with a battery and wired to suit your radio.4pin.