1. High-quality transparent acoustic earphone Clear sound performance 2. Talk and listen without holding the radio 3. Designed with extra large textured PTT button. 4. Designed for noisy environments, clear tube allows covert use for security, law enforcement and public safety applications. 5. The unit provides discreet communication 6. Available for Icom, standard, Yaesu and Motorola transceivers and other brands 7. good quality, good price, Prompt delivery .