Name: Teenage Engineering OB-4 Matte Black Portable Radio - High-Fidelity Bluetooth Speaker
Brand: Teenage Engineering

Teenage Engineering OB-4 Matte Black Portable Radio - High-Fidelity Bluetooth Speaker arrives as a compact, design-forward portable stereo with a striking matte-black finish and a release focus on high-fidelity sound and long battery life.

This OB-4 combines a 2.2-channel audio layout with dual neodymium tweeters and dual woofers to deliver clear highs and solid low-end response across a wide 52–25,000 Hz frequency range. With a rated RMS power of 76 W and a maximum sound pressure level of 92 dB, it is built to fill small-to-medium spaces with balanced, detailed audio.

Connectivity is flexible: Bluetooth 5.0 with AAC profile provides wireless streaming, while a 3.5 mm connector offers wired playback. The speaker houses a built-in Class D amplifier and supports FM radio tuning for traditional broadcast listening.

Designed for portability and everyday use, the OB-4 features an aluminium and glass-fibre-reinforced polymer housing, a rotary volume control, built-in display, LED indicators and convenient carrying handles. Despite its compact rectangular form factor (232.5 × 57.5 × 284 mm) it weighs just 1.7 kg, making it easy to relocate around the home or take on short trips.

Battery performance is exceptional with up to 72 hours of playback on a single charge, and the unit ships with an AC cable supporting 100–240 V and 50/60 Hz for worldwide compatibility. Note that there is no Wi‑Fi, card reader or built-in microphone.

Use cases for the OB-4 include serving as a stylish living-room centerpiece for music playback, a portable companion for weekend getaways, or a high-quality sound source for small gatherings and outdoor picnics. Its FM radio and wired input also make it suitable for users who value broadcast listening or reliable wired connections.

Key selling points include high-fidelity 2.2-channel sound with neodymium drivers, Bluetooth 5.0 (AAC), long battery life up to 72 hours, compact aluminium/GFRP construction and integrated FM radio. For buyers seeking a fusion of Scandinavian design and portable, powerful audio, the Teenage Engineering OB-4 Matte Black is an attractive choice.