Altair 5003 Double Sided Headset with XLR4F.

Genuine Altair AM-100/2 Single Muff Communication Headse
XLR4F connector fitted
Altair part number 5005 AM-100/2

Superlux HMD685A single sided Headset with Dynamic Cardiod Mic.
Nice thick downlead cable of 1.5m length terminated with a XLR4F connector.
400 ohm Speaker Driver.
40mm Neodymium.
90 dB SPL (1mW).
Frequency respons…