Bluetooth

​It seems like it was only yesterday that – on some vehicles, at least – the traditional car key was replaced with a Bluetooth fob. Now, Korean startup OneKey is out to replace that fob with its smartphone-controlled Keto system.

Sennheiser fans can stop holding their breath. The iconic German brand has finally produced an audiophile-quality set of in-ear, Bluetooth headphones. Based on the IE 80S wired model, the new IE 80S BT promises hi-res audio and a breathtaking soundstage.

Though portable Bluetooth speakers allow music lovers to share audio with those around them, headphones are mostly a private listening experience. With the launch of Augmented Audio, BG Audio gives users the choice to keep things private or share with others, either locally or remotely.

It looks like a fitness tracker, acts like a smartwatch, yet has has no buttons or screen. It also plays audio when you touch your finger to your ear and is gesture and voice-controlled. It's called Get and its creators think it could change the way we connect with each other and our information.

Most of the true wireless earphones out there only offer passive isolation from the world around you. Sony's upcoming WF-1000XM3 earphones rock the company's excellent active noise cancellation tech so that you can focus on the music.​​

​If you came of age in the 1980s, chances are pretty good that you loaded all of your favorite music onto a mixtape. Now you can break out your dusty tapes once more thanks to Nimm Lab, which has just injected a portable cassette player with Bluetooth.​

​Over the past several years, we've heard about a number of implantable devices that regularly dispense medication within the body, doing away with the need for pills or injections. A new one takes things further, as its dosage level can be changed after it's been implanted.

Mimic Go might look like a bubbly, chubby-version of a tracking tag (which it is) but that's only one of the tricks it has up its red, plastic sleeve. The Mimic Go can help prevent things from going missing in the first place. And light up your ride.

Nura's over/in ear headphones are absolutely extraordinary, so we're super keen to hear how this Australian company's ear-adaptive audio technology translates to a smaller device. Nuraloop has just gone on pre-sale at a 30 percent discount from retail pricing, shipping in September.

New York audio brand Master & Dynamic has introduced its "most technically sophisticated headphones yet," and its first wireless over-ears with active noise-canceling technology.

The marketplace is pretty well served when it comes to clever hydration systems. But Hydrade, the newest player in the space, steps things up a notch offering solar power; a nifty sensor that knows if you're drinking from it or pouring it out and a sip-for-sip partnership with a major water charity.

Although smartphones perform many tasks on their own, they're also able to make devices such as drones, robots and cameras cheaper and/or more capable by acting as their "brains." One of the latest gadgets to receive such a treatment is the humble – and potentially treasure-finding – metal detector.