Delivering unmatched value, comfort, sound quality and secure fit, the Wi Sure-Fit EL2 earset and lavalier microphone delivers three applications in one versatile microphone including ear-worn, lavalier and video camera/instruments miking applications. Weighing in at only 0.2 Oz, this high-quality, visually unobtrusive almost invisible earset features an ultra-small removable MIC capsule mounted on an ultra-thin, rugged, bendable and adjustable length boom captures vocals clearly with excellent rejection of wind and ambient noise. The included removable omnidirectional and unidirectional MIC capsules design enables you to swap the capsules between the earset and the lavalier or choose from variety of optional removable MIC capsule models with different polar patterns and frequency response for added control over your environment. The included Simple-Twist detachable adapters provide true compatibility with Wi Audio Stream, AKG, Shure, Audio-Technica, Sony and Sennheiser pocket transmitters. The Wi Sure-Fit EL2 is an excellent choice for pastors, artists, fitness instructors, speaking and singing performers, video camera miking and hard to MIC instruments. Wi Sure-Fit Earset Specifications: MIC Capsule : Removable 3.5mm Element: Back Electret Condenser Polar Pattern: Omnidirectional Frequency Response: 20Hz -20kHz Operating Voltage: 1.5V - 12V DC Operating Current: < 500 uA Sensitivity: -45dB+/-3dB/Pascal Maximum SPL: 140 dB SPL max Output Impedance: 2K Ohm +/-30% Ear Mount: Silicon Left & Right Ear Mount Boom: Flexible, Adjustable Length Cable: Detachable Cables & Adapters Weight: 0.2 Oz Wi Sure-Fit Lavaliere Specifications: MIC Capsule : Removable 3.5mm Element: Back Electret Condenser Polar Pattern: Unidirectional Frequency Response: 50Hz -15kHz Operating Voltage: 1.5V - 12V DC Operating Current: < 500 uA Sensitivity: -51dB+/-3dB/Pascal Maximum SPL: 130 dB SPL max Output Impedance: 1.5K Ohm +/-30% Cable: Detachable Cables and Adapters Weight: 0.1 Oz