Maximum Power Draw - 0.35 Amps@ 12V. DC. Product size - 13.5 inch X 6.5 inch X 4 inch. Weight - 400 grams/14 oz. Product Features: Compact, portable and convenient. Deep, penetrating soothing massage. True lateral massage. Relaxes strained muscles. Relieves back pain. Soothes and relieves stress-related pains (i.e. headaches, shoulder, neck, etc.).