Portable 1:4 HF Shortwave Dipole Antenna Balun Mini Barron Waterproof 50W 100% brand new and high quality Feature: Radio balance adopts large-size high-quality for HAM radio equipment It can easily produce high-performance balun to ensure efficient radio transmission and reception. It allows you to fully enjoy the fun of DIY. 4:1 balun is suitable for long-line antennas, with manual day adjustment or automatic day adjustment. Compact size , easy accessibility, suitable for outdoor use QRP stations and set up . Easy to erect and simple to use. Specifications: Maximum Power: 50W Material: Plastic and Metal Dimension: approx.5.2x5.2cm/2.05x2.05in Color: As pictures shown Quantity: 1 Pc