Confused about your feelings for someone? Just try on Ravijour's recently launched bra.

The Japanese Lingerie Company has introduced a new exquisite bra that only unhooks when you are in true love. Dubbed the 'True Love Tester', the bra is being launched on the occasion of the company's tenth anniversary, blending technology with fashion in a unique way.

The newly developed Japanese bra is connected to a smartphone app via Bluetooth. It's clasp will only open when in-built sensors in the lingerie sense true love, i.e., when the user's pulse rate reaches the 'True Love Rate,' according to Japanese News Site, ITMedia.

Don't worry, the magic bra will not automatically unhook itself when you break a sweat while walking or jogging. The chip has the ability to differentiate between heart beat rise due to exercise and romantic enthusiasm.

Ever heard of 'opening up' in love!

The sensors detect a woman's heart beat increase caused by 'adrenal medulla.' The adrenal medulla secretes catechlomine, which affects the automatic nerve, and apparently increases the heart rate. The sensors then study the heart signal and dispatch it to the app for examination. The app then calculates the True Love Rate based on the heart rate changes. When the True Love Rate exceeds a certain level, the bra unhooks automatically, i09 reports.

While the bra's automatic unhooking is a 'very interesting concept', Ravijour is advertising it as protective clothing too. The bra was launched with a video that showed several men trying to forcibly manhandle women or seduce them with money. However, this special bra only opens when a woman wants to make love.

Check the video out below. The technicalities of the bra are also explained here.

However, Ravijour's bra is not directly available for sale. On a purchase of Ravijour branded products worth 5,000 yen (about US$50) or above, one can win a chance to test it out at their preferred hotels in six different cities across Japan. The company will then select five lucky couple as winners of the contest.

This is not the first time women's under clothes are making headlines. More recently, the Royal Fantasy bra by Victoria's Secret set headlines on fire. Costing just $10 million, the bra "is adorned with over 4,200 rubies, blue and yellow sapphires and diamonds handset in 18-karat gold, and its crowning glory is the bra's 52-carat pear-shaped ruby drop centerpiece."