1RELIABLE AND DURABLE: The antenna tuner is made of aluminum alloy shell, which is stable and reliable, practical, easy to operate and use, and has a long service life. 2AUTOMATIC AND UNIVERSAL DESIGN: This antenna tuner adopts automatic tuning without any control wires, suitable for most radio stations. Shell does not need to be assembled, can be used directly. 3WIDE BAND: Includes a set of 7 capacitors and 7 inductors, allowing it (maximum configuration) to work effectively in a wide band, overlapping the 1.855MHz amateur radio HF band. 4PORT AND DISPLAY DESIGN: Small shortwave automatic antenna tuner, C type charging port, M mount, Organic Light Emitting Diode display, very convenient. 5INDUCTANCE AND CAPACITY: 10% power measurement accuracy, 8.53H maximum mounting inductance, 0.05H minimum step mounting inductance, 1869pf maximum mounting capacity, 10pf minimum mounting capacity. Item Type: Antenna Tuner Material: Aluminum Alloy Maximum Working Power: 100W Maximum Measurable Power: 150W Minimum Power for Tuning Start: 5W Minimum Measurable Power: 0.1W Measurement Step forupto 10WPower: 0.1W Measurement Step for Power greater than 10W: 1W Power Measurement Accuracy: 10% Specified Maximum Inductance: 8.53H Minimum Installation Step for Inductance: 0.05H Maximum Installation Capacity: 1869 pF Minimum Installation Capacity: 10pF Built in Polymer Lithium Battery: 1350mAh 1 x AntennaTuner 1 x Charging Cable 1 x User Manual Have a great time shopping!