Wireless receiver for the Kodex CX-i bite alarms, incorporating rolling code PRNG technology to make it easy to encrypt your alarms and receiver together. Purchase the CX-i wireless alarms separately; or as part of a full set with 3 alarms, receiver and protective case all included. This receiver has a wireless range in excess of 100 metres and features vibration-only mode and volume control. The receiver requires 3x AAA batteries for long-lasting use (not included). Another intelligently designed product from Team Kodex!