Teenage Engineering OB-4 - A Portable Speaker That Even Plays Cassettes

Teenage Engineering products always catch my eye with their design first, and the OB-4 was especially intriguing because it's a portable speaker that even plays cassette tapes.
📊 Quick Info
| Item | Details |
|---|---|
| Brand | Teenage Engineering |
| Price | $630 |
| Playback | Bluetooth · FM Radio · Cassette Tape |
| Design | Orange dual woofers, detachable carrying handle |
| One-line review | ⭐⭐⭐⭐⭐ A soulful speaker carrying on the boutique-boombox lineage |
✨ Three-Line Summary
- 👍 Best feature: A multi-source setup supporting not just Bluetooth but cassette and radio too
- 👎 Downside: The high price tag means it takes some serious thought
- 🎯 Recommended for: Fans of Teenage Engineering's design, anyone who enjoys retro audio vibes
📸 Product Gallery

A front shot showing off the orange dual woofers

Sitting on a living room shelf, it works as an interior object on its own

A shot showing the handle and top control details
🔍 Why I'm Interested
Not just Bluetooth, but cassette too
Most portable speakers these days are Bluetooth-only, but the OB-4 adds cassette tape playback, letting you actually enjoy that retro vibe rather than just look at it. It also supports FM radio, giving it a clear edge in source variety.
Teenage Engineering's signature design language
The orange housing, the minimal top control layout, the detachable handle — it's all unmistakably Teenage Engineering's industrial design language. It's a speaker you'd want to leave out on display like an object.
A carrying handle for real portability
With a handle attached, it's easy to move around indoors and out, and it seems well suited to outdoor situations like camping or a backyard party.
🤔 Things to Consider
A price that's nothing to sneeze at
At around $630, it's not a light purchase for a portable speaker, so it's worth weighing the sound quality and versatility carefully against the price before deciding.
Water/dust resistance rating unknown
The design looks great for outdoor use, but since the exact water and dust resistance rating hasn't been confirmed, you'll want to be careful using it while camping or near water.
Battery life
Things like continuous playback time on wireless use are also worth checking against official specs before buying.
📋 Product Features (Subjective Rating)
- Design: ⭐⭐⭐⭐⭐
- Portability: ⭐⭐⭐⭐☆
- Feature variety: ⭐⭐⭐⭐⭐ (Bluetooth + Radio + Cassette)
- Value for money: ⭐⭐⭐☆☆ (Premium price bracket)
🛒 Before You Buy
✅ Recommended for
- Anyone who loves Teenage Engineering's design
- Anyone who enjoys retro audio vibes like cassette and radio
- Anyone who wants a speaker that doubles as a living room object
❌ Not recommended for
- Anyone shopping mainly by value for money
- Anyone looking for outdoor gear where water resistance and durability come first
🎯 Final Verdict
The OB-4 is more than a speaker — it's closer to Teenage Engineering's own definition of a "retro audio object." Bluetooth is a given, but supporting cassette tape and FM radio too is a genuine point of difference among speakers coming out these days.
The price is admittedly steep, but given the design polish and source variety, it's plenty appealing for anyone who's serious about both audio and design.
If you'd like to enjoy some cassette-era charm in your living room or workspace, this is one worth putting on your wishlist.
Source: Apollo Labs product page



