This is a high grade, pro audio earphone designed for On Camera/On Stage professional use. Discretely listen to staff/guests while On Air/Live. This above Industry Standard Ear Prompter Kit comes with the standard Stereo 3.5mm straight connector. 60 Inch cable designed for news anchors or presenters using leg mounted IFB receivers. This universal kit offers: Ambidextrous Design, Iphone 3.5mm & Android Compatible, 60 Inch Cable Shielded Polyurethane Cable, Interchangeable Gold Plated Connectors, Customizable Hypoallergenic Ultra Clear Acoustic Tube, Customizable Ear Insert, 3 Sounds Isolation Ear Buds, Kevlar Lining for Added Tensile Strength, 30 Day Money Back Guarantee, 3 Year Free Replacement Warranty Compatible with: Lectrosonics, Clear-Com, Telex, Comrex, Comtek, Phonak, Studio Technologies, JK Audio, iPhone(3.5mm Headphone Jack), Android, SoundTap, Pro Intercom, Shure, Galaxy Audio, Glen Sound, Sennheiser, & More. Indoor & Outdoor In-Ear Cue Monitoring solution. Weather/Sweat Resistant. Specs: Impedance: 120 Ohm Rated Power: 0.3 Watt Sensitivity: 100dB Freq. Range: 100Hz-20KHz