The Prologic Element Com-Pact Alarm Set packs a small alarm head with a range of modern features. A single charge keeps the alarms running for up to a week, with a low battery warning light signalling when a top-up is needed. When power runs low, the supplied 1m charging cable splits to charge each alarm head individually at once. The alarm heads offer a drop-back differential, multi-colour LED, and adjustable volume, tone, and sensitivity, plus a 2.5mm socket for an illuminated hanger or swinger. The receiver has a range of up to 100m, syncs easily with the alarm heads, and mirrors all the LED colour options. It also includes a vibration setting alongside the tone, which is useful for heavy sleepers. Features: - Adjustable volume, tone, and sensitivity - Sensitivity levels: 3, 5, 7, 14, 28 and 56mm - Six volume and tone options - 2.5mm socket for an illuminated hanger or swinger - Powerful internal Li-On batteries - Low battery consumption - Low battery warning - Can be charged whilst fishing - One meter long charging cable (60cm + four 40cm heads) - Multi-colour LED on alarm - At least 100m reach (depending on terrain) - IP66 dust and waterproof - Vibration option on receiver - Flashlight LED on receiver - Drop back indication