Interface ship's communications with countermeasures receiving set an/wlq- (v) ; manual press-to-talk/mute switch; left and right earphones can receive separate different signals; 8 ohms matching impedance to 21 mc and 7 mc stations; o/a dims 7.88 in. H, 1.88 in. W, 4.0 in. D; bulkhead mounted
