Welcome to our store! This headset boasts several key features: 1. Transparent tubing is easy to conceal. Professional audio-visual quality minimizes noise for high-fidelity sound. 2. Excellent sound quality with clear audio. Soft plastic earplugs and transparent tubing provide a comfortable fit. 3. Elastic cord design allows for easy length adjustment. The product is electromagnetically shielded, environmentally friendly, and offers anti-radiation functionality. 4. Features a PTT (Push-To-Talk) button. Compared to using a mobile phone directly, radiation is reduced by more than 1000 times. 5. The mono headset incorporates a flexible air tube for enhanced comfort during activities like driving and sports. Specifications: Material: ABS Color: Black Connector: 3-section 3.5mm jack Cord Lengths: PTT to Headset: 100cm / 39.4in; PTT to Air Tube: 40cm / 15.7in; Air Tube: 30cm / 11.8in Compatible Models: For Vertex: EVX-531 EVX-534 EVX-539; For Vertex: VX130 VX131 VX160 VX180 VX210 VX210A VX230 VX231 VX315 VX350 VX351 VX-354 VX400 VX410 VX-414 VX417 VX417 VX420 VX54. Package Includes: 1 * Headset Cable 1 * Air Tube 1 * Replacement Earplugs Guaranteed Satisfaction: Customer satisfaction is our top priority. If you encounter any issues with the product, please contact the seller immediately. We strive to provide excellent after-sales service.