Using Bluetooth 4.0 and NFC, the device straps onto a keychain or other device; if you leave the house without one or the other, each will emit a loud signal.
Presuming you're in earshot of both, it should be easy to find the phone and the miniature gadget. But if you miss the alert, the accompanying Windows Phone app will help locate the lost item on a HERE-powered map.
Available in four snazzy colours — cyan (blue), yellow, white, and black — the Treasure Tag weighs in at 13g, with UI features like a battery level indicator, and a removable 220 mAh battery. Lumia users can pair up to four tags with the same app, which is available now in the Windows Phone Store.
Each colour-coded tag can be turned into a Live Tile on the Start screen, where owners will see updates and can quickly access their misplaced items. And, if you leave your Tag at home—still attached to your bag or keys—a long press will deactivate it; also, mute the alarm or put it to sleep directly from the Tag app.
With a price tag of €24,90 (£20.50), the Nokia Treasure Tag is expected to hit shelves in April. Third-party applications to support Android and iOS devices are also set to be released in the coming months.
Nokia recommends the technology be used with its Lumia 1520, Lumia 625, Lumia 520, or Lumia 720 devices—preferably with the updated Lumia Black system.
The Treasure Tag is reminiscent of the Tile, an iPhone-compatible tracking device available for £15 pre-order.
Reports of Nokia's mini accessory cropped up in late July, when an anonymous user tipped the Tags on the Yahoo Finance Nokia Corporation message board.