Teenage Engineering’s new OB-4 is a radio, instrument, and speaker all in one - The Verge

The synth wizards at Swedish electronics maker Teenage Engineering just introduced perhaps their most perplexing and intriguing product yet: a rewindable radio and speaker system called the OB-4.

The core feature of the OB-4 is its manual rewind dial paired with an integrated motor, which the company says will let you rewind back to anything you’ve listened to in the past two hours on a rolling basis — whether it was live radio, a Spotify playlist played via Bluetooth, or even an instrument plugged in, like one of Teenage Engineering’s synths?

The company says the device supports the newest Bluetooth standards, so down the line the OB-4 will be able to connect wirelessly to its newer OP-Z synthesizer, too.

Beyond that, it’s clear Teenage Engineering sees the device’s function partly as a very nice-looking but pricey Bluetooth speaker.

The company says you can use it to just relax and listen to the radio or your favorite music, and it has a carrying handle for bringing it to a friend’s place or a park hangout.