The Korum KBI-R Bite Alarm Presentation Set is a compact, battery-powered bite alarm system designed for sensitive bite indication. It features a high output, water guarded speaker with adjustable volume, plus a vibrating function on the receiver for alerts when you are away from the rods. The alarm uses a 5mm LED with a 10 second latching function, and an adjustable locking nut and compression washer help secure it to the rod. - Includes 3 x bright green 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)