Description: This air tube headset throat mic can be used in noisy environment. Great sound insulation performance and less susceptible to external environmental, it will transmit sound in high quality. It has radiation protection as well. Transparent acoustic tube would be hardly noticed by others around you and plastic ear bud will fit snugly to your ear canal. You can adjust the headset for perfect fit and stably wear it around your neck with comfort. Features: Compatible with most cellphones with a standard CTIA 3.5mm audio port. Adjustable size, fit for all kinds of people. The throat mic will capture your low voice clearly. Unobtrusive transparent acoustic tube and soft plastic ear bud. Make a clear phone call even in noisy environments. Press PTT key to answer / hang up phone call. Specifications: Color: Black Material: PU Microphone Wire Length: About 100cm / 3.28ft Headset Wire Length: About 150cm / 4.92ft Audio Port Diameter: 3.5mm Suitable: for iPhone / Samsung and More Package Weight: About 63g Package List: 1 * Throat Mic Air Tube Headset 1 * Replacement Ear Bud (Other items in the pictures are not included.)