| Item | GTM1 | GTM2 | GTM3 |
| Color | white | white | white |
| Rated Power | 10W | 10W | 10W |
| Rated Voltage | 5V | 5V | 5V |
| Input Current | 2A | 2A | 2A |
| Timing | 3 minutes/5 minutes | 3 minutes/5 minutes | 3 minutes/5 minutes |
| Product dimension | Φ82.6*76MM | Φ82.6*76MM | Φ82.6*76MM |
| Fully charged time | / | 2±0.5h | 2±0.5h |
| Battery capacity | / | 840mAh | 840mAh |
| Time of endurance | / | 12 times | 12 times |
| Noise | less than 65 dB | less than 65 dB | less than 65 dB |
| Net weight | 150g | 180g | 200g |
| Main material | food grade ABS | food grade ABS | food grade ABS |
| Main application | Clean braces, jewelry, etc | Clean braces,jewelry, etc | Clean braces,jewelry, etc |
