Retekess Th104 Wireless Object Finder Item Locator Tracker 40 Meters quantity:2PCS and its life span is

and its life span is greatly increased compared with button batteries

can be used continuously for 15 years

Effective distance: 15 meters

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Ice pad * 1

Retekess Th104 Wireless Object Finder Item Locator Tracker 40 Meters quantity:2PCS and its life span isProduct Information: 1. 1 transmitter with 6 receivers, used to find any items, such as keys, Pets (dogs, cats, turtles), wallets, TV remotes, wallets, glasses, and any items you need. 2. The receiver emits a "beep" sound, allowing you to track the lost item. When there is something nearby, the device will beep up to 80db. It has LED lights, Which is very convenient when you need to find something in the dark night 3. Just press the relevant color