Handheld massagers use three main power types: manual (no power source), electric/rechargeable (often USB-rechargeable), and battery-powered. Some listings specifically note lithium‑ion batteries.
Many listings emphasize portability: lightweight, compact or pocket-size designs, rechargeable options, and shapes or constructions that are easy to carry in a bag.
Dimensions vary widely in the results: lengths about 2.3–9.7 inches, heights about 3–9.7 inches, widths about 3–9 inches. Listed weights range roughly from 0.15 to 1.0 pounds.
Common materials include rubber and plastic; other items in the results use silicone, polyurethane, and polycarbonate.
Warranty coverage varies across listings and includes options such as 30‑Day Limited, 90‑Day Limited, 1‑Year Limited, and Lifetime Limited warranties.
Some listings warn against use with a pacemaker, defibrillator, or internal TENS unit and advise avoiding use with certain implanted metal devices. They recommend consulting a doctor for medical conditions, pregnancy, or nursing. One device is described as an FDA‑registered medical device.
