Portable Design: Lightweight and compact, making it clean to use everywhere. Rechargeable Battery: Long-lasting battery life for multiple sessions on a single charge. https://www.santacruzsentinel.com/2024/01/22/nooro-knee-massager-reviews-2024-consumer-report-is-it-scam-or-legit-does-it-really-work-knee-foot-massager/