anti lost alarm for child,baby anti lost alarm is widely used for trip to protect the important and valuable things... anti lost alarm for child,baby anti lost alarm,mobile anti lost alarm ... adjusting), anti-lost, searching, alarm with vibrating and auto-saving electricity.etc.3. Convenient to use, easy operation, small size and portable.4 ... Battery: NO. 7 ×1(1.5V, AAA size) anti lost alarm for child