altec lifejacket jolt

Battery life varies by model—some listings state up to 16 hours, while others list up to 30 hours.

Listings describe five LED modes—solid colors, flashing, slow fade, beat‑sync (lights that sync to the music), and an off setting—with multi‑color/customizable options noted.

They’re described as rugged/heavy‑duty and labeled waterproof, shockproof, snowproof and dust/sandproof in various listings; several also state the speakers float.

Listings show sizes roughly from 4.3 × 3 × 4.3 inches up to 7.6 × 5.8 × 7.6 inches, with weights ranging from about 1.6 pounds to 6.2 pounds depending on the model.

Specifications vary by listing. Examples include dual 2" neodymium woofers with a 125 mm × 45 mm passive radiator and 16 watts RMS; other descriptions note stereo sound with deep bass and high‑sensitivity drivers.