Rely on the superior sound quality of the Garrett MS-3 Z-Lynk Wireless Headphones to improve your metal-detecting experience. Built-in Z-Lynk wireless receiver and high-fidelity audio gives you the clarity you need for optimal detection. These metal-detector wireless headphones offer a wide wireless area of operation. Comfortable ear cushions and adjustable headband ensure an optimal fit. Use the volume control for easy adjustment. Garrett MS-3 Z-Lynk wireless headphones fold down for compact storage and include a USB charging cable. Speaker Impedance: 8 ohms. Frequency Response: 30 to 18,000 Hz.Manufacturer model #: 1627710. Built-in Z-Lynk wireless receiver High-fidelity audio Wide wireless area of operation Comfortable ear cushions and adjustable headband Fold down for compact storage