For beauty, fitness, massage and maintenance purpose.
1. Dimension: 128 x 68 x 25 (mm)
2. Weight: 128gm (battery included)
3. Channel: two independent channels
4. Power supply: 9V battery x 1 piece
5. Output: 0-120mA peak to peak current into 500 ohm load
6. Rate: 1~100 Hz 7. Function mode: 3 function modes