Features: 1. The lightweight throat mic headphone is compatible with most cellphones with a standard CTIA 3.5mm audio port 2. The durable mic earphone has adjustable size, fits for all kinds of people 3. The throat mic will capture your low voice clearly 4. The practical earphone's unobtrusive transparent acoustic tube and soft plastic ear bud 5. The utility throat mic headphone can make a clear phone call even in noisy environments; You can press PTT key to answer / hang up phone call Specifications: Color: Black Material: PU Microphone Wire Length: 100cm / 3.28ft Headset Wire Length: 150cm / 4.92ft Audio Port Diameter: 3.5mm Suitable: for iPhone / Samsung and More Package Weight: 63g Package List: 1 * Throat Mic Air Tube Headset 1 * Replacement Ear Bud (Other items in the pictures are not included.)