The Invisible Series Earpiece: Undercover/Covert/Clandestine Radio Earpiece, Premium/Rugged Tubeless Option. 3.5mm, 20 inch CLEAR cable. Designed for 360 Situational Awareness. Configurable to any setup/Speaker Mic, Motorola, Kenwood, Icom, & more. Includes carrying case for secure & convenient storage. Invisible Series Earpieces are the most covert earpieces on the market. The ambidextrous design creates a single version that fits both the left or right ear. Designed for complete comfort, stealth, & zero ear fatigue. Eliminate ear aches/soreness & maintain situational awareness with this almost invisible earpiece.