This alarm presentation set contains two remote alarms and a wireless bite alarm receiver, plus two bright purple 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 boasts 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. FEATURES - Includes 2 x bright purple bite indicators - Adjustable volume - Vibrating function on receiver - 5mm LED - Compact design - 10 second latching LED - Adjustable locking nut and compression washer - Water guarded speaker - High output speaker - Sensitive bite indication - Battery powered by a 9V battery (not included) - Receiver powered by 3 x AAA batteries (not included)