0.1 to 125 watt power range (SSB and CW), 100W on 6M. 2000 memories for instantaneous band changing. Controlled from Icom Tuner button on radio. Compatible with any Icom radio that is AH-4 or AH-3 compatible. (6M tuning not available on radios that are only AH-3 compatible) Partial radio list: IC-7000, IC-706MkIIG, IC-718, IC-746 and IC-756. Tuning time: 0.1 to 6 seconds full tune, 0.1 seconds memory tune. 1.8 to 54.0 MHz coverage. Built-in frequency sensor. Tunes 4 to 800 ohm loads (16 to 150 on 6M), 4 to 3200 ohms with optional 4:1 Balun. For Dipoles, Verticals, Vs, Beams or any Coax Fed Antenna. Optional external Balun allows tuning of random length, long wire or ladder line fed antennas. Includes Icom interface cable and coax jumper. Ready to use right out of the box. Small Size Enclosure: 6.5L” x 6.5W” x 1.25H”. Weight: 1.5 pounds.