PRODUCT FEATURES:  PPS (Power-On Protection System) stops accidental power up and wasted batteryTough ABS weatherproofed case and battery compartment designed for the most demanding of conditions  Digital circuitry and internal component weatherproofingBuilt-in SRT (Sync-Connect Receiver Technology) for long range and obstacle link signal optimisationEasily connect and update alarms, 4 per channel (16 total)Alarm tone and LED colour are automatically updated on receiver when adjusted on alarmsTru-tone cone speaker for loud frequency deliveryD-Vibe vibration setting transmits pulses per bleep and in silent modeLER (Last Event Recall) indicates the last event sent to the receiverIndexed volume control wheel (8 volume settings, including silent) Low battery warningSelf-standing case designRequires 1 x PP3 9V batterydB7-R Bite Alarm and 3-rod presentation sets are available separatelySupplied with lanyard  TECHNICAL SPECIFICATION:  Dimensions: 9.2 (L) x 5.4 (W) x 4.5 (H) cm Weight: 72g Material: ABS  Compatible with dB7-R Alarm