RTS LH-300-DM-A5M - Single-Sided Intercom Headset with Dynamic Microphone (A5M Connector)The LH 300 headset is a super lightweight, single sided headset for the ultimate in day long comfort. The LH 300 features high quality, dynamic earphones with a noise cancelling microphone with a semi rigid, fully adjustable boom for precise positioning on right or left side. The high quality wide band dynamic earphones with soft, pliable ear cushions and headband pads offer a better fit, isolation and frequency response. Variations: LH 300 DM A4F