Teenage Engineering OB-4 Portable Bluetooth Speaker – 72 Hour Battery, FM Radio, Red

Introducing the OB-4 from Teenage Engineering, a compact yet bold portable speaker that blends rich sound with playful, tactile controls. The vibrant red finish makes a statement while the technology supports everyday listening at home, outdoors, or on the go. This is more than a speaker; it’s a mini audio hub designed to fit your lifestyle.

Premium sound for real-life moments

Feel the clarity and presence of a stereo setup in a compact form. The OB-4 uses two 4" bass drivers and a pair of neodymium tweeters to deliver a balanced, dynamic range. A flow-optimised bass reflex duct helps enhance deep bass without muddying the mids or highs, creating an expansive sound stage that can illuminate a room.

• 38 watts per channel for confident, room-filling audio
• Approaching 100 dB of loud, clear stereo in suitable spaces

Versatile connectivity for flexible setups

Set up quickly with multiple listening options. The OB-4 supports FM radio and line-in for wired sources, plus high-definition Bluetooth and Bluetooth Low Energy for wireless playback. Control is easy with OrthoRemote or the OrthoPlay app on iOS or Android, and it works with popular streaming services like Spotify and Apple Music.

• FM radio and line-in (aux) for wired sources
• Bluetooth HD and BLE for seamless streaming
• OrthoRemote and OrthoPlay app compatibility
• Works with major streaming services

Long-lasting power and thoughtful portability

A high-capacity battery powers long listening sessions. The OB-4 can deliver up to 72 hours of normal radio playback on a single charge, with roughly 8 hours at maximum volume and about 40 hours per full charge under typical use. The integrated handle makes it easy to carry, and the included spiral antenna option helps boost FM reception when needed. For style and convenience, carry bags and straps in a range of colors are available.

• 72 hours of normal radio playback
• About 8 hours at max volume; ~40 hours per full charge
• Portable handle and optional FM antenna boost
• Custom carry accessories available

Interactive features for creative listening

OB-4 invites hands-on interaction. It memorizes what you play, allows rewinds and remixing of radio content, and features a tactile, digital-motion volume knob plus a tape-reel element for expressive control. Disk mode stores ambient, karma, and metronome features to spark new ideas.

• Endless looping tape memory and remix options
• Digital-motion volume control and tape reel interaction
• Disk mode with ambient, karma and metronome

Whether hosting, working, or relaxing, the OB-4 blends performance with personality. It’s designed to be a versatile companion that can adapt to different listening scenarios while keeping a bold, recognizable aesthetic.