Main Functions: * Excellent electromagnetic or electrohydraulic shock wave source: Low energy causes less pain and injury to the patient, guarantees good lithotripsy effect and long life-span of the consumables. * ractical localization ways: C arm X-ray localization makes it possible to get the similar eutopic image, trace all fragmenting process and observe the calculus in real time. B-Ultrasound localization is optional. * Flexible shock wave source holder: Spherical movement of the small C arm system ensures the optimal entering position during the entrance of human body.