Ultra Lightweight Invisible Low-Profile Neck-Worn Microphone * Compatible with Virtually All Wireless Beltpack Transmitters including Shure, Audio-Technica, Sennheiser, AKG, Line6 and Beyerdynamic * Converts to Secure Head-Worn Microphone with Apex EA01 Headset Adaptor (Included) * Detachable 1.5m (5ft) Cable Assemblies with Interchangeable Connectors ( TA3F, TA4F, Locking Four-pin and locking 1/8th-inch TRS Jacks Included) * Easily Form Fitted for Maximum Comfort