[Great Material]With metal housing, stable and reliable performance, practical, easy to operate and use, has a long service life.<br> [Antenna Tuner]The antenna tuner is automatically tuned without any control wires, suitable for most radio stations.<br> [Effective]The device contains a set of 7 capacitors and 7 inductors, which allows it (with the largest configuration) to work effectively in a wide frequency band, overlapping the amateur radio HF band of 1.8-55MHz.<br> [Perfectly Equipped]Mini shortwave automatic antenna tuner, Type-C charging interface, M seat, OLED display.<br> Power supply voltage: USB charge and discharge (built-in battery)<br> Maximum current consumption: 400mA<br> Maximum working power: 100W<br> Maximum possible measurement power: 150W<br> Minimum power required to start tuning: 5W<br> Minimum possible measurement power: 0.1W<br> Measurement steps for power up to 10W: 0.1W<br> Measurement steps with power higher than 10W: 1W<br> Power measurement accuracy: 10%<br> Maximum installation inductance: 8.54uH<br> Minimum installation inductance step length: 0.05uH<br> Maximum installation capacitance: 1870pF<br> Minimum installation capacitance step length: 10pF<br> Display: OLED<br> Colour: black<br> Material: metal<br> Package Contents:<br> 1 * Automatic Antenna Tuner<br> Only the above package content, other products are not included.<br> Note: Light shooting 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.