Item Type: Automatic Antenna TunerMaterial: Aluminum AlloyMaximum Working Power: 100WMaximum Possible Measured Power: 150WMinimum Starting Tuning Power: 5WMinimum Possible Measured Power: 0.1WMeasurement Steps for Power Up to 10W: 0.1WMeasurement Steps for Power Greater Than 10W: 1WPower Measurement Accuracy: 10%Specified Maximum Inductance: 8.53HMinimum Mounting Step For Inductance: 0.05HMaximum Installed Capacity: 1869 pFMinimum Installed Capacity: 10pFBuilt in Polymer Lithium Battery: 1350mAhPackage List1 x Automatic Antenna Tuner1 x Manual1 x USB Cable1PREMIUM METAL SHELL: Antenna tuner adopts aluminum alloy shell, with stable and reliable performance, practical, easy to operate and use, not easy to damage, and long service life. 2EASY TO USE: The antenna tuner is automatically tuned without any control line and is suitable for most radio stations. Shell does not need to be assembled, can be used directly. 3COMPATIBILITY: Contains a set of 7 capacitors and 7 inductors, allowing (maximum configuration) to work effectively in a wide band, overlapping with the 1.855MHz amateur radio HF band. 4RECHARGEABLE AND DISPLAY DESIGN: Mini shortwave automatic antenna tuner with C type charging port, M mount, OLED display. Compact, lightweight and easy to carry, convenient to use at any time. 5PERFORMANCE: 10% power measurement accuracy, 8.53H maximum mounting inductance, 0.05H minimum step mounting inductance, 1869pf maximum mounting capacity, 10pf minimum mounting capacity.