Woojer Strap 4

Strap 4 takes the audio-to-vibration idea and makes the physical commitment smaller. Its single contact point can be worn around the waist or chest, giving a listener a way to add tactile bass without putting on a full vest. The documented independent audio and haptic controls matter because more vibration is not always the same thing as a more comfortable listening experience.

Compared with Vest 4, the gain is portability and the loss is distribution across the body. That trade can be sensible at a desk, while moving between rooms, or for someone who simply wants to find out whether tactile listening appeals to them. Woojer publishes a roughly 240 g device weight and an up-to-ten-hour battery claim; those figures describe the product and should not be mistaken for this guide's measurements.

We would choose the strap for convenience rather than expecting it to reproduce the coverage of six vest transducers. Exact-model independent evidence assembled for this entry is thinner than for Vest 4, so the recommendation is provisional. Avoid importing praise from a previous Strap generation or medical interpretations of relaxation marketing. The useful, supported proposition is straightforward: a compact wearable adds a controllable physical response to compatible audio.

[1] Woojer Strap 4 — Portable Haptic Audio Device