It is made of high-quality materials, environmental protection and no peculiar smell works with specially designed enlarger structure, increase the volume naturally. It is a new design for all phones with a natural amplification effect. The weight is small, high strength, wear resistance, good durability. Don't use the power, use the characteristics of hollow silicone horn to amplify sound, make you enjoy the pleasure of outdoor music indoors. This silicone sound speaker will look Elegant in your bedroom, car, living room, your work, anywhere you can.