Teenage Engineering OB-4 Magic Radio Portable Bluetooth Speaker in White

The Teenage Engineering OB-4 Magic Radio in White is a beautifully minimal, ultra-thin bluetooth loudspeaker that hides some seriously clever tricks under its clean exterior. With deep, natural bass, crystal-clear stereo sound and an ingenious motorised interface, it is just as happy as a portable party speaker as it is as a creative tool in your studio. Listen via bluetooth, line-in, FM radio or the unique disk mode, and even rewind live radio thanks to OB-4s looping tape engine.

Designed to go wherever you do, OB-4 combines a compact footprint with a built-in handle so you can move from living room to garden to rehearsal space without missing a beat. A high-capacity rechargeable battery delivers up to 72 hours of FM listening or 40 hours over bluetooth, while the orthoplay app and optional ortho remote give you wireless control. Underneath it all, OB-4s twin woofers, tweeters and flow-optimised bass reflex system deliver a surprisingly big, open sound that fills the room.

Beyond its role as a premium portable speaker, OB-4 is also a powerful creative instrument. Its low-latency line input makes it ideal as a compact studio monitor for synths, drum machines and instruments, while disk mode unlocks experimental tools like ambient soundscapes, a metronome, looping and more. Spin the motorised tape reel and volume knob with your fingers to scrub, loop and time-bend whatever you are listening to, turning everyday listening into a hands-on performance.

Whether you want a design-led wireless speaker for the home, a portable sound system for trips away or a playful studio companion that encourages experimentation, the Teenage Engineering OB-4 Magic Radio in White brings premium sound, long-lasting power and genuinely unique interaction together in one inspiring package.

Motorised Magic Interface

OB-4s digital-motion controlled volume knob and tape reel invite you to grab, spin and interact directly with your audio. You can rewind, loop and time-bend what you are hearing with your fingertips, transforming passive listening into a tactile, performance-like experience that feels inspiring every time you use it.

Natural Room-Filling Sound

Four tailor-engineered speaker elements and a carefully tuned bass reflex duct deliver deep, natural bass and an open stereo field that fills the room. The result is a clear, detailed sound that works just as well for background listening as it does for focused sessions, making OB-4 a genuine everyday listening upgrade.

Portable With Serious Battery Life

With up to 72 hours of FM radio playback or around 40 hours over bluetooth from a single charge, OB-4 is built for long days and late nights. Its slim form factor and integrated handle make it easy to move between rooms or take out and about, so you can enjoy high-quality sound wherever you are.

Disk Mode And Endless Tape

Disk mode turns OB-4 into a constantly evolving media instrument, with functions like ambient, karma, metronome, noise and loop available and more added over time via the orthoplay app. At the same time, OB-4 continuously records what you are listening to on an endless looping tape, so you can instantly rewind to catch a song title, repeat a phrase or creatively manipulate live radio and line-in sources.

• Ultra-Thin Portable Bluetooth Loudspeaker - OB-4s compact orthobook design and integrated handle make it easy to carry from home to studio to outdoor spaces, giving you big, high-quality sound in a slim, stylish form factor.
• Deep, Natural Stereo Sound - Four custom speaker drivers and a flow-optimised bass reflex duct deliver rich low end and a wide, open stereo image, so your music, podcasts and radio sound clear and engaging at any volume.
• Multi-Source Listening With Endless Tape - Switch between bluetooth, line-in, FM radio and disk mode, while OB-4s internal looping tape continuously records what you hear so you can rewind, loop and time-bend audio on demand.
• Long-Lasting Rechargeable Battery - A high-capacity Li-ion battery provides up to 72 hours of FM listening or around 40 hours over bluetooth, reducing the need for frequent charging and making OB-4 ideal for extended sessions and travel.

General

• Product: Teenage Engineering OB-4 Magic Radio
• Colour: White
• Type: Portable bluetooth loudspeaker and media instrument

Audio

• Speaker Configuration: Four tailor-engineered speaker elements
• Design: Stereo playback with room-filling sound field
• Bass System: Flow-optimised bass reflex duct

Inputs And Connectivity

• Wireless: Bluetooth classic (audio streaming)
• Wireless Control: Bluetooth low energy (orthoplay app and ortho remote)
• Analogue Input: Line-in
• Radio: FM tuner
• Additional Mode: Disk mode with multiple functions

Battery And Power

• Battery Type: High-capacity Li-ion rechargeable
• Battery Life (FM Radio): Up to 72 hours
• Battery Life (Bluetooth): Up to 40 hours

Controls And Interface

• User Interface: Motorised, digital-motion controlled volume knob and tape reel
• Functions: Rewind, loop, time-bend and interact with recorded audio

Special Features

• Endless Looping Tape: Continuously records what you listen to for instant rewind and looping
• Disk Mode Functions: Ambient, karma, metronome, noise, loop (via firmware and orthoplay app updates)
• Use Cases: Portable loudspeaker, FM radio, creative performance tool, low-latency line-in for studio use