Extendable Size: Telescopic design, adjustable to suit neck sizes between 12" and 15". Excellent Sound Quality: Dual-mic transponders are designed on both the left and right sides. Sound is absorbed through vibrations from the throat and transferred to the radio, then converted into clear voice frequencies. This throat microphone effectively reduces background noise in loud environments such as outdoor operations or job sites. Snug Fit Transparent Silicone Earplugs: The mushroom-shaped acoustic tube earpiece is suitable for extended use. The earpiece features a professional-grade acoustic ear coil. The ergonomic design of the ear cushions ensures a secure and comfortable fit for various ear sizes. Provides noise reduction without causing ear discomfort. Fine Transparent Acoustic Tube: The transparent cable allows for discreet wear. The throat microphone can be hidden under clothing, and the transparent earphone wire is not easily visible, making it ideal for low-profile communication needs. Analysis of Experimental Tests: While similar throat microphones with a single microphone may be available at lower prices, performance varies significantly. After testing multiple models, this product delivers superior voice transmission with natural tone clarity. Specifications: Color: Black Material: Plastic Size: Approximately 90cm / 35.43in Notice: This headset does not include a PTT switch. A separate PTT switch is required to operate this headset with a radio. Package Includes: 1 x NATO Plug Telescopic Tactical Throat Shock Microphone for Walkie Talkie