Power source: DC 6.0V (4 x AA alkaline dry batteries or external power source)
Frequency: 2 to 3,000Hz
Current consumption: about 50mA (operating impedance: 500 ohms)
Battery lifetime: about three months, 15 minutes/day (operating impedance: 500 ohms)
Machine size (L x W x H): 170 x 96 x 36mm
Weight: about 190g (not including dry batteries)
Normal operation: at 5 to 55 degrees Celsius
Environment: humidity < 80% RH
Storage and transportation temperature: -20 to 55 degrees Celsius
Environment: humidity < 10 to 95% RH
two-channel output; 10 different grades of intensity control, with two heating outputs
Different channels with different intensity control operations
Nine different speed controls
Time can be set from 1 to 99 minutes