This device, which includes a transmitter and a receiver, transmits an audible signal when the 2 elements are separated by more than 3 to 20m.

The PA can thus tell you when your child strays a bit too far or when you forget your baggage, handbag or briefcase, etc.

Specifications:

• Size: 40 x 55 x 16 mm
• Weight: 20 gram
• Power: 4.5 V or 3 x buttoncell