The unit runs from a 240 volt mains adapter so there are no costs involved with battery replacement.
It uses 30 - 35 mm circular electrodes which will need to be replaced from time to time.
The package includes everything you need put into a smart canvas type storage bag.
Technical specification:
Carrier Wave. 4000Hz, constant current
Peak current. 14 mA, peak to peak. 10 mA RMS. Modulated signal 7mA RMS.
Power supply: input 220 - 240 v 50 Hz. Output 24VDC. Double insulated.
Classification. Class IIType BF.
Four Function Modes with pre set programmes 40 to 65 minutes duration.
Well documented. Easy to use.
2 yr warranty