📌 Key Specifications and Features: Actual Range: Up to 4 kilometers clear. Type: High-efficiency professional wireless device. Battery: Powerful and lasts for long periods of continuous work. Sound: Very clear and pure, resistant to interference. Design: Strong body, resistant to shocks and heavy use. 📌 Warranty and Reliability: Warranty: Full year (12 months) against manufacturing defects. Quantities available, wholesale and retail prices.