It is easy to operate by buttons, and is quite compact. You can put this unit into your bag.
It is equipped with Rechargeable Lithium Battery. No worry about accidential battery-off. It can give you continuous use up to 10 hours.
SM9128H is equipped with 1) 1 pc of main device 2) 2 pcs of electrode wire 3) 2 pairs of electrode pad(1 pair of palm-shape pad, 1 pair of oval-shape pad) 4) 1 pc of pad holder 5) 1 pc of user manual 6) 1 pc of USB cable 7) 1 pc of acupuncture map 8) 1 pc of color box