Adjustable volume, tone, and sensitivitySensitivity levels: 3, 5, 7, 14, 28 and 56mmSix volume and tone options2.5mm socket for an illuminated hanger or swingerPowerful internal Li-On batteriesLow battery consumptionLow battery warningCan be charged whilst fishingOne meter long charging cable (60cm + four 40cm heads)Multi-colour LED on alarmAt least 100m reach (depending on terrain)IP66 dust and waterproofVibration option on receiverFlashlight LED on receiverDrop back indication"The Prologic ELEMENT COM-PACT bite alarms may be some of the smallest alarms on the market, but they are jam-packed with all the latest modern features that a serious carp angler would expect. Features such as drop-back differential, a multi-colour LED, adjustable volume, tone, and sensitivity, plus a 2.5mm socket for an illuminated hanger or swinger. For supreme convenience, both the alarms and the receiver are rechargeable and feature high-quality internal Li-On batteries that can give you roughly a week’s worth of fishing depending how intensely you use them. When the battery runs low, the units will warn you and you can recharge them while in use thanks to the extra-long charging cables with long heads. No more quitting a session early because your alarms are dead.Built to be super-strong, weatherproof, and extremely durable, it’s totally safe to keep the ELEMENT COM-PACT alarms on your bank sticks or buzzer bars at all times, meaning you have no excuses not to head out on that last-minute fishing session.