Audio Implements HDS-98 Cable D Straight Mono 3.5mm Plug

Frequency Response: 20Hz to 3500 Hz Distortion: Less than 1% at 1mW@ 1kHz Maximum Power Input: 100 mW All receivers have a metal 1/4 nubbins and a metal base for long life.

Ear tips for On-Camera Audioclarifier.

Audio Implements supply the television and security industries with IFB Earpieces and/or listening devices for use in motion picture, television or surveillance applications. The PO-4.7 is a 4.7K Ohm Transducer (Magnetic Receiver). All Transducers have metal 1/4 nubbins and metal base for long life. * AudioClarifier, Receiver Cord and Eartips sold separately.