The ATR6550 (formly known as the Audio Technica ATR55) this much improved Rifle Camcorder Pro Microphone offers intelligible reproduction for close, medium, and long-distance pickup. In its 'Tele' range setting, this cardioid condenser is engineered to pick up dialogue and sound effects at a distance, while bypassing ambient noise such as traffic, air-handling systems, room reverberation and mechanically coupled vibrations. Designed especially for use with video cameras.