Ultrasonic waves are converted into mechanical vibrations through the transducer. The characteristics of the transducer depend on the material selection and manufacturing process. The performance and service life of transducers of the same size and shape
Our Lithium Battery Electric Mountain Bike is made of high quality Aluminium alloy frame. It is equipped with 36V/10Ah Lithium Battery. Dry battery LED lamps ensure you a safe night riding. Pedal-assist can help you go further with less effort by assistin