Suggested Retail: $21.99. Wireless Home Security burglar alarm, Magnetic Sensor Door Window Alarm, Super Loud 110dB, Pool Door Alarm for Kids Pack of 4 - The HENDUN Wireless Home Security burglar alarm is a reliable and great value product. It comes with 3xLR44 batteries and a low battery indicator. The alarm can be easily installed in pool doors, refrigerators, drawers, freezers, and interior doors for kids' safety. The alarm is activated when the parts are separated and stops when recombined. It features a chime mode, ideal to alert you when a child, guest, or dementia patient is opening the door. The alarm is super loud at 110dB, enough to scare off intruders or notify neighbors. Brand: HENDUN -- LOT STICKER: TCE-BOX-BOXTCE00442-ITEM-e6a0b861___LPNPMAO8898167 -- SIZES ARE ESTIMATED. 7 CALENDAR DAY FULL REFUND GUARANTEE (FROM PRIMARY PICKUP DATE) ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 CALENDAR DAY STORAGE (FROM PRIMARY PICKUP DATE) IS ALSO AVAILABLE. THE PRIMARY PICKUP DATE IS THE DAY AFTER THE AUCTION ENDS. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.