By teenage engineering

Introducing OB–4, the magic radio the incredible sounding portable hi-fi stereo with line-in, wireless audio, and the evolution of radio. OB–4 memorizes everything you play on an endless looping tape. Rewind the radio and remix anything. Comes with a folding handle that doubles as a stand. Ultra power efficient with up to a week of music listening. 

Natural Sound: Four tailor-engineered speaker elements deliver pure quality sound and a stereo field that fills the entire room. A flow-optimized bass reflex duct delivers deep natural bass.

72 hrs Listening: How about normal radio listening for a week without charging? The high capacity lipo battery delivers about 8 hours of noise at max volume, or an average of 40 hours on a single charge.

The Wireless Part: The OB–4 hardware platform supports both high-definition bluetooth classic and bluetooth low energy standards. Works with ortho remote for wireless volume control. 

Smart Antenna: We've spent years fiddling with the antenna so you won't have to. And for those tricky listening places, they've included a fine-tuned smart spiral antenna that neatly integrates into the handle. 

Up to 72 hours of Listening: How about normal radio listening for a week without recharging? Or, if you’re the loud type, about 8 hours of noise at maximum volume. The high capacity lithium polymer battery means you’re able to listen up to an average of 40 hours on a single charge. 

9.2 x 11.2 x 2.3