1. Products Are Continuously Improved And Updated, And The Performance Indicators Have Become The Most And Stable Products. 2. The Interior Is Encapsulated With Resin Glue And Is Completely Waterproof, Allowing For Long-Term Outdoor Use In All Weather Conditions. 3. The Product Is Loved By The Majority Of Radio Enthusiasts 4. K-50ms Is A 1:1 Small Balun Handmade By Me. It Is Compact And Suitable For Field Installation And Base Antenna Use. Use High-Quality Sl-16 Seats. All Screws Are Made Of 304 Stainless Steel. 5. The Cold Head Is Silver-Plated Copper, And The Internal Joints Have Been Waterproofed. It Is Sealed With Black Epoxy Resin Glue Specially Designed For Electronic Sealing. There Never Be Water Ingress, And It Can Be Erected Outdoors For A Long Time. Each Balun Is To Strive For Perfection! Main Parameters:1.8m-54m Insertion Loss:Less than 0.1DB Withstand Power:500W PEP Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use Colour:Milky White Material:ABS Size:About 14x7.8cm (Height x Diameter) (Including Screws And M Base Parts) Package Contents: 1 * Radio Shortwave Antenna Receiver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.