1. Wide range of application: Support any radio station, antenna, no need for professional data cable, suitable for most radio stations and antennas in the market, such as Jianwu, ICOM, , , USDX, QRP and other arbitrary radio stations, support end-feed, vertical, horizontal, , inverted V, car seedling and other antennas. 2. Antenna tuner + standing Wave Meter 2-in-1: This product is the , but also power, standing wave meter, support to display standing wave value, forward power, reverse power. The power meter mode supports a maximum display of 150W SSB/CW in untuned state.Please calibrate the standing wave power value of the equipment when using or replacing the radio for the first time. 3. Powerful tuning ability: Built-in large capacitor, inductance value combination, greatly improve the tuning success rate, reduce the trouble of repeatedly adjusting the antenna feed system. The maximum combined value of the capacitor is up to 3869pF and the maximum combined value of the inductor is up to 17.21uH. 4. Morse Code Exerciser: This product has a 3.5MM headphone jack on the rear panel and supports external single-paddle keys, so you can easily practice Morse code in your spare time. No need to buy a separate Morse exerciser, one device all done. The system supports 6 status interfaces, including user storage interface, bar power standing wave meter interface, large font interface,standing wave curve interface, power curve interface, relay and battery voltage status interface 5. Manual tuning and automatic tuning: Two modes of manual tuning and automatic tuning are supported. In automatic mode, when the standing wave exceeds the set value (default 1.80) when monitoring the radio transmission signal, the lowest standing wave is automatically triggered. In manual mode, the capacitance or inductance values can be adjusted to very low standing wave ratios by manually increasing or decreasing the values after automatic tuning or directly. Deep Gameplay for Advanced Players: The system supports 13 advanced parameter configurations, suitable for advanced players depth customization, such as automatic storage number, tuning speed, starting power, starting standing wave, power calibration, standing wave calibration, signal testing, relay testing and other functions, customize your tuning system Built-in lithium battery: The use of polymer ultra-thin lithium battery, ultra-large capacity 3300mAh, untuned standby up to 150-200 hours, tuned standby average of about 15 hours, very suitable for outdoor portable operation, while supporting Type-C interface charging, with charge.The system interface displays the battery voltage and remaining power in real time, so that you can use it outdoors and no longer worry about running out of power.The number of relays operated at different tuning levels affects battery life. Built-in buzzer: Built-in high-power active buzzer, when the key or standing wave exceeds the set value of the automatic sound "drop -" ringing, timely remind the user to pay attention to the current standing wave, and the product is hung on antenna feed, the sound is still clear Colour:Black Material:Metal+Plastic Size:154x74x29mm Package Contents: 1 * AT-100M Pro Antenna Tuner 1 * Charging Cable Only the above package content, other products are not included. Note: Light reflection 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.