Delphin HADES is an affordable electronic bite alarm indicator offering basic light and sound alarm functions. It is equipped with one LED light and detects both directions of line movement. Everyone can operate this indicator because its very easy to use. On the bottom end, there is an input for 2.5mm jack connector and therefore, you can connect hanging bite indicator which has built-in light alarm. In the front, there are two turning knobs. With the upper knob you control the volume, but it also serves as an on/off switch with interlock. By using the lower knob, you can set the desired pitch. The alarm is waterproof, so you don't have to worry about it during the rainy days. Power is provided by 1 x 9V battery. If you purchase a 12-piece set of HADES bite alarm indicators, they will be delivered in a nice promotional package designed for direct sale at your store. This package comes in an eye-catching color combination of green and black and it will attract one´s interest.