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Yes. The 45,000 Hz frequency is gentle enough not to damage acrylic, metal clasps, or wires — it dislodges buildup with sound waves and water, not scrubbing or chemicals. It's the same technology dental offices use.

Yes — that's exactly what it's built for. The ultrasonic vibrations break up plaque, tartar, and bacterial buildup at a level that brushing can't reach, which is usually what's causing the odor and the dull, cloudy look.

Plain water works for daily cleaning. For tougher buildup or stains, you can add a denture-cleaning tablet, mild soap, or a dedicated jewelry/denture cleaning solution to the water for extra power.

You choose: 3 minutes, 5 minutes, or continuous mode. Most daily retainer/denture cleaning only needs the 3–5 minute setting.

No — it's a quiet, low-level hum, not a harsh buzzing sound. Most people barely notice it running while they get ready.

It's USB rechargeable with a 250mAh battery — a full charge handles several cleaning cycles before you need to plug it in again. A red light means it's charging; green means it's ready.

The sink holds 160ml, which comfortably fits a single retainer, denture, or a few pieces of jewelry at once. It's sized for personal daily-use items, not bulky objects.

Yes — it also works for jewelry, rings, glasses, watches, razors, and makeup tools, so it's not a single-purpose gadget collecting dust if your needs change.

At 356 grams and 11.5 x 11.5 x 8cm, it's genuinely pocket/bag-sized — it travels well for trips, gym bags, or even your desk at work.