bluetooth finder

All listed trackers use Bluetooth. Some specify Bluetooth 5.4 LE with ranges shown as up to about 20 meters (indoor) and up to about 50 meters (outdoor). Other listings give a single range of roughly 250 ft (≈76 m).

Trackers use three main power types: built-in rechargeable lithium batteries (examples list capacities such as 150 mAh or 180 mAh with stated run-times like up to 8–12 months per charge), replaceable coin-cell batteries (commonly CR2032), and non-replaceable multi-year batteries (some listings state up to 3 years).

Protection ratings in the group include IP66 on some keychain-style trackers and IP67 on others, indicating splash/water resistance and dust protection as listed in individual product descriptions.

Common locating features include: audible chimes or built-in speakers to play sounds; step-by-step precision finding on compatible phones; and broader networked locating via companion apps or large device networks that report recent locations on a map.

The listings show three powering approaches: built-in rechargeable lithium batteries (some list wireless charging compatibility), replaceable CR2032 coin cells, and non-replaceable multi-year batteries (with some listings stating up to 3 years).

Trackers are generally pocketable: examples include roughly 1.3-inch square keychain-style tags around 14.3 g, coin-shaped tags about 1.26 inches across weighing ~0.39–0.42 oz, and square tags with dimensions near 37.76 mm × 37.76 mm as listed.

Package quantities vary by listing: some are sold as single-item packages while others are offered in multi-packs (for example, 4‑packs).