1) The unit consists of an alarm Receiver and a Transmitter which can be locked onto the child's wrist;2) The Receiver will sound an ALARM and a Warning Light also FLASHES when the transmitter immerse water;3) Alarm voice level is approximately 100 decibels;4) Maximum range from Tansmitter to Receiver is 200 feet (60 metres
approx);
5) Wristband works on CR2032 battery, battery life is 3 years;6) Receiver works on AC adapter OR Rechargeble 9v battery;7) Rechargeable battery can last 6 hours when it's fully charged;8) Base unit has a Low Battery Alarm when the rechargeable battery is nearly using out;
9) Reset and Test button
Child and baby Guard Wristband Anti Drowning Alarm