StandingMate-Time Saving Fitness Speaker! Vertical Motion of Ultra Low Frequency (3 Hz over) Linear Motor (speaker) system with No NoiseWoori Health Bank Co., Ltd. Founded October 2006, Woori Health Bank developed StandingMate-world 1st bidirectional digital WBV (Whole Body Vibration) . Equiped with patented new robotic technologies, Ace was welcome at the exhibitions of sports and medical equipments. We exhibited in FIBO, SPORTEX, Sporex, Kimes, Golf Affair etc. Robotic TechniquesStandingMate uses linear motor (ie. Voice coil motor) and fully bidirectional inverter which is equiped with robotic sensors. They monitor the positions of the plate 20, 000 times a second for many purposes like safety, energy-saving, and even finding optimum frequency. We have 8 patents related to mechanical, electrical inventions and will have more.