Korum KSI6 Remote Bite/Set 3 Rod With six sensitivity options, deep U-support, adjustable 3/8 screw thread, O-ring, 6 volume and tone settings, powerful loudspeaker with rain cover, afterglow and a low battery warning function. Range Receiver: 150 m. The bite alarm requires 2 x AAA batteries (batteries not included). The receiver requires 3 x AAA batteries (please order separately).