The Radar DS Solar Alarm is the first solar powered alarm unit. It works with a Lithium-ion accumulator that charges through the rear mounted solar panel. This Li-ion battery has sufficient power to last for many weeks of fishing. You do not even need sunny conditions to charge the Li-ion accumulator, with simple daylight being more than enough to provide full power. We have absolute confidence in this product, and you can be assured of trouble-free performance after purchasing this alarm, which is why we give you a 2 year unlimited warranty. Designed, developed and manufactured in Europe. Available in 4 colours individually or as a box set of 3 blue alarms with receiver or a box set of 3 colours (R,Y,G) and a receiver. powered by the sun or daylight, no batteries required European made, 2 years unlimited warranty colours available: red, green, yellow, blue works with our DSr Receiver supplied with wall charger warning signal when accumulator needs to charge fully encapsulated electronics, nightlight function volume, tone and sensitivity regulation, mute function non slip rod rests, included protective rubber case 2,5mm jack plug for illuminated hanger