The set of DELPHIN thin electronic bite alarms and a receiver designed for acoustic and sound bite signalisation. Bite alarms allow setting volume, tone pitch, intensity and night light. They are water and bad weather resistant. A connector for linking illuminate alarms is included. Due to its new electronics, its coverage is more than 150m. The set includes new DELPHIN chain alarms which have their own place in the case for safe transportation. The number of alarms is the same as the number of bite alarms. Due to its new electronics and it´s great water-resistance, the warranty is extended for 3 years.