The Entel EA15/DX is a clear acoustic tube earpiece which fits in your ear using the small or large soft pink ear plugs supplied. This is connected to a combined tie clip microphone and press to talk button (PTT). It allows the radio user to carry the radio on their belt and have the facility to both make and receive calls without removing their radio. This keeps the radio safe and ensures that calls are not missed, especially in noisy environments. This accessory is particularly suited to covert, security applications. This accessory is designed for light to medium duty applications, so to ensure maximum life span it should be personally allocated to users.