Our highly qualified R&D personnels have worked out a kind of mini multimedia speaker and a series of ultrasonic utilities such as ultrasonic cleaning pen, ultrasonic mini washing machine for individual use and etc, as shown in above pictures. We are now testing the market for these products. If you are interested, pls feel free to contact us without hesitation.pls check at our website www)echorich$com ERI mini speaker has the internationally top-graded frequency flexural resonance transmission technology, which can transmit dulcet sounds through any hard materials carriers of wood, metal, glass, ceramics, plastic, foam board, etc, whether flat or curved. Even in the water, the flexural resonance technology of ERI can also make out beautiful sounds, with which you are with a band surrounded. Just like bringing you a musical SPA. Echo Rich Industries Ltd David Tou Origin Shenzhen China Material SSL,special SSL imported from USA university lab Packaging Carton Delivery lead time 25days Minimum order 20FCL Supply ability 3000pcs/month