Function:
1. Training all kinds of dogs such as that are used as pets,in police and for shepherding.
2.  Expelling ferocious dogs effectively,and also illuminating.
3.  Can be used as a torch at usual time.
4.  Power:1*9v5.  Effective range:50 feet

Please Note:

• Dog Bark Eliminator ultrasonic sound output has not shown to be harmful to humans or animals.
• Monitor your flashlights intensity.If it appears to weaken,replace the battery.Always dispose/Recycle batteries according to State and Local guidelines.