5.0 Upgraded Ultrasonic Retainer Cleaner【Top1 German Motor】【SGS-Certified 50KHz Ultrasonic & Dual Tech】【4.0 Smart Chip】【Rechargeable】for Denture, Braces, Night Guards, Aligner, Toothbrush, Jewelry • Cordless, rechargeable design with simple operation—long press to power on. Device cannot run while charging for safety, and the display shows real-time battery percentage. • High-performance 5000 RPM motor delivers strong, stable ultrasonic vibration for deep cleaning while maintaining durability and long service life. • 55KHz ultrasonic technology creates nano-level bubbles to penetrate small gaps, effectively removing dirt, stains, and residue from retainers, dentures, and more. • Upgraded smart chip enables precise 360° cleaning with improved efficiency, along with intuitive touch controls and easy-to-read display. • Multi-purpose use for dental appliances, jewelry, glasses, and accessories—providing a convenient all-in-one cleaning solution for daily household needs.