Frequency: 2 1000 Hz Current consumption: about 40mA Machine size: 150mm 100mm 50mm Weight: 166g (excluding battery) Power source: DC4.5V (Use three #5 alkaline dry batteries or external power source) Automatic power off: The power is automatically cut off after 15 minutesí» treatment. Classification: Internal powered Equipment Type B Battery life: Approx. 3 months with 15-min. usage per day Environmental temperature for using: 5í½55íµ Environmental temperature for storage: -20í½55íµ Environmental humidity for using: ú+80%RH Environment humidity for storage: 10í½95%RH
