The new IC-F21 with adjustable power settings provides clear two-way communications in a variety of situations. The radio has up to a full 4 Watts of power, enhancing performance in situations where walls and other obstacles cause interruptions. The power usage can easily be scaled back when the situation isn't as demanding. The IC-F21 has a 16-channel capacity and has built-in signaling capabilities that allow users to set up talk groups and quiet the radio when others are talking and set up selective calls to individuals, keeping private conversations private. Also available is the IC-F21S, a simple 2-channel receiver equipped with a drop-in trickle charger.