We produce different massagers with excellent quality more than 11years, all materials we use pass CE, GS, or BSCI inspection, especially materials like motors, AC plug, massage heads,transformer etc., the motors we use is built-in copper,not aluminium, the sames as our AC plug, mean that our cost is almost twice than other suppliers, and QC do test for each product before they are sent out, defective rate less than 2%. also we provide technological support online 24 hours. pls contact us for more details.