Runtime varies by model. Many devices advertise around 120 minutes (about two hours) per charge; a few list longer runtimes—up to about 150 minutes—typically at the lowest intensity setting.
Most are battery-powered and rechargeable. The listings show rechargeable batteries with common charging via USB-C / Type‑C cables or similar power cords.
Control options vary by model: several offer 3 intensity/speed levels, others provide 5 speeds. Some list a customizable speed range (e.g., 1750–2400 PPM), while a few specify fixed intensity settings such as 2400 / 2800 / 3200 RPM-equivalent values.
Common warnings include: do not use with a pacemaker, defibrillator, or internal TENS unit; consult a doctor if you have medical conditions, implanted metal devices, or if you are pregnant or nursing. Follow manufacturer instructions and safety guidance on contraindications.
Several devices offer guided massage or breathwork routines, app/Bluetooth connectivity for customized programs, built-in LCD screens with step-by-step routines, and in some cases biometric or live pressure feedback for more guided sessions.
Weights vary by model: lighter handheld units are around 1.3–1.6 pounds, while larger or feature-rich models can weigh about 5–5.3 pounds. Portability depends on size and weight—lighter models are easier for travel and quick use.
