Portable: - Small size and light weight(≈1.4kg), more convenient to carry. Time saving: - Scanning in 3~4.5 seconds, higher efficiency in daily working. New photoelectric sensor: - High speed, high sensitivity. Aluminum alloy housing. The imaging plate is used to trap and store the teeth' radiation energy. The stored energy is stable until scanned with a laser beam, to collect information and convert it into digital data, then sent to a computer via USB cable. The unit is powered by power adapter, instead of batteries or any charging system, but need to work with software The computer and other external devices(like monitor, printer, etc.) that work with this product are equipped by the user own self. For the suggested computer configuration, please refer to manual"3.3 Computer Configuration Requirements". Specification: - Model: HDS-500. - Pixel size: 30*30μm. - Scan Time: 3s. - Theoretical Resolution: 16.7lp/mm. - True Resolution: 10lp/mm. **For further product information, please contact Chat Support**