w/o adapter, Power supply: 1.5V 4* "C" Battery (Not included) or AC/DC power, Static work current:<50uA, High voltage working current:<380mA, High voltage:6KV to 9KV, High voltage produced time:4 minutes & only touching the second and third plate inside the device at the same time w/high voltage occured, Low battery indicator:4.8+0.2v, New battery can be supplied for electronic shock 20-30 times, each w/manual, w/silk-printing on side(L7.99xH2cm), w/color sticker label on side, 1pc/clear PE bag1.-Can I get some samples?-Yes, sample orders are welcome. 2. -Could I use my own LOGO or design on goods?-Yes, customized logo and design on mass production are available. 3.-What is the delivery time?-A week for sample;7-30 days for mass production. 4. -Can I trust you?-Absolutely yes. We are"Alibaba" verified supplier. We only provide products with excellent quality. 5. -May I visit your factory?-Sure, welcome at any time.We can also pick you up at airport and station.Please Send an inquiry for more service information