0 2 mins 12 yrs

Losing your sunglasses is bad enough when they cost very little, but when you’ve paid out for an expensive pair of designer frames, misplacing them is infuriating.

That’s where Tzukuri glasses come in. The $350 (£207) frames are embedded with tiny solar-powered Bluetooth sensors that link with a smartphone and send alerts if the glasses are left behind.

An alert is sent when the glasses are 16ft (5m), 32ft (10m) and 50ft (15m) away, and these alerts contain locations tag to help owners find them – even in wide-open spaces.

If any of these notifications are dismissed, for example if the wearer has deliberately left the glasses at home on a rainy day, they will stop appearing for the rest of the day.

THE TZUKURI RANGE OF FRAMES

There are six frames to choose from, each inspired by a famous fashion or cultural icon.

These include the Atticus frames, named after To Kill A Mockingbird character Atticus Finch, played by Gregory Peck in the 1962 film.

Fitzgerald frames were designed on sunglasses worn by President John Fitzgerald Kennedy.

The Ford range were inspired by fashion designer and director Tom Ford, while the Lennon frames look like John Lennon’s infamous rounded glasses.

Grace Kelly, actress and once Princess Consort of Monaco inspired the Monaco frames, and the Truman range was designed in the style of Phillip Seymour Hoffman’s glasses in the film Truman Capote.