- Phniti UC-190 ultrasonic cleaner with 47kHz technology for deep and effective cleaning - Removes dirt, grease, and residues from jewelry, glasses, watches, retainers, and dental aligners - 330ml stainless steel container, durable and easy to clean - Three digital timer modes (300s, 450s, 600s) to suit different needs - Automatic shut-off at the end of the cleaning cycle for increased safety - Transparent viewing window to monitor the process without opening the device - Suitable for home and professional use in optical stores, jewelry shops, and laboratories - No chemicals required, just tap water - Not recommended for rusty items