Teenage Engineering OB-4 White – portable Bluetooth speaker with high-fidelity sound The Teenage Engineering OB-4 White is a one-of-a-kind portable Bluetooth speaker that combines modern design with exceptional functionality and hi-fi sound quality. With up to 40 hours of battery life, FM radio, Bluetooth, line-in, and the innovative “disk mode”, the OB-4 redefines how you listen to music. Its standout feature is the ability to automatically record everything you hear — allowing you to rewind, loop, and remix audio in real-time.

Main features Bluetooth 5.0 (AAC), FM radio, and 3.5 mm AUX input Innovative “disk mode” – real-time audio recording and playback Ultra-efficient 2 × 38 W class D amplifiers Battery life up to 72 hours (FM) or 8 hours (Bluetooth at high volume) Foldable handle that doubles as a stand and antenna Compatible with Orthoplay app and Ortho Remote LED display with intuitive “tape dial” and precise volume knob High-quality sound and smart design The OB-4 features a semi-unified acoustic chamber with a flow-optimized bass reflex duct. Its 2+2 stereo configuration and active crossover at 3.5 kHz deliver a rich and detailed audio experience. With a maximum SPL of 104 dB for bass and a frequency range of 52–25000 Hz, it provides immersive sound across the spectrum.

Use cases Listening to music at home or in the office Traveling, beach trips, picnics, and outdoor events Field recording and environmental playback Presentations, yoga, and meditation with sound Creative audio experiments using the looping tape feature Technical specifications Frequency response: 52 – 25000 Hz Max SPL: 92 dB (stereo), 104 dB (bass) Amplifier: 2 × 38 W, class D Crossover: 3.5 kHz Drivers: ferrofluid-cooled neodymium tweeter + long-throw woofer Battery: 72 h (FM), 8 h (Bluetooth high volume) Connectivity: Bluetooth classic (AAC), Bluetooth 5 LE, 3.5 mm stereo-in Dimensions: 232.5 × 284 × 57.5 mm Weight: 1.7 kg Materials and build Crafted from glass fiber-reinforced polymer and precision-milled aluminum. Finished in a UV-resistant white coating for durability and a premium aesthetic. Compact yet robust, the OB-4 balances portability and elegance.

Included in the box Teenage Engineering OB-4 White – Bluetooth speaker AC power cable (100–240 V) Antenna Why choose OB-4? The OB-4 by Teenage Engineering combines audiophile-grade sound, groundbreaking features, and artistic design. It offers a unique listening experience and is perfect for those who appreciate mobility, innovation, and style in one compact device.