Operates with 2 x AAA 1.5V batteries (not included). Six volume levels plus silent mode. Four sensitivity adjustments Seven tone adjustments. Dedicated drop back LED indication.Dedicated drop back tone Ultra-bright LED. This item is in the category "Sporting Goods\Fishing\Anglers' Equipment\Bite Alarms". The seller is "fish-4a-deal" and is located in this country: GB. This item can be shipped to United Kingdom.