TTI1047 Features: * Transmitter and receiver * Waterproof * Receiver controls two training devices * Compact, tough, and dependable * Easy to access receiver on/off switch * Battery life indicator on transmitter and receiver so you know when to charge the system or replace the battery * Settings on receiver for four different sounds for training * Self-test button on receiver to verify correct training device connection * Long lasting rechargeable, user replaceable, NiMH batteries for receiver Specifications: * Non-rechargeable, user replaceable 9 volt battery for transmitter Warranty: * 2 Year comprehensive warranty