This alarm presentation set contains three alarms and a wireless bite alarm receiver, plus three bright green bite indicators. The KBI alarms are compact, rugged and reliable. Featuring a sensitive roller wheel and a bright LED, it’s a fantastic choice for all forms of specimen angling. The speaker features adjustable volume, while the LED boasts a 10 second alert feature. The receiver has a long wireless range, on/off switch and volume control. When used in conjunction with the alarm heads, it’s a top-quality combination that’s not going to let you down.