Welcome to our shop! Introducing our Automatic Antenna Tuner DIY Kit, designed to provide efficient tuning for radio amateur HF frequency bands. This kit features an automatic tuning system with an OLED screen, allowing for clear and visible data. We use high-quality capacitors, including brand chip capacitors and 1000V high voltage chip capacitors, along with imported PIC chips, ensuring excellent performance and reliability. The antenna tuner is capable of working effectively in the broadband overlapping radio amateur HF frequency band from 1.8MHz to 50MHz. With 7 inductance and 7 capacitance options, it consumes a maximum current of 400mA. This portable antenna tuner is easy to carry, making it convenient for use wherever you go. Not only is it functional, but it also offers an interesting installation process, allowing you to enjoy the fun of assembly. It is designed to be professional, stable, and high-performing. 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service. Package includes: - 1 x PCB Board - 1 x Connection Line - 1 x IC - 2 x Plug - 15 x Relay - 6 x Capacitance - 6 x Porcelain Ring - 1 x Coil - 1 x Transistor - 1 x Diode - 2 x Connector - 2 x Copper Wire - 1 x User Manual Thank you for choosing our Automatic Antenna Tuner DIY Kit. We hope you have a great experience with it!