Description Features: 100% brand new and high quality Safe, Humane, Effective Emits piercing ultrasonic tone that dogs hate Works with most dogs Can also be used to train dogs Stop the dog approaching you before it can bite you The appearance design is exquisite, easy to carry, especially suitable for outdoor work, outdoor travel and security night patrol, and all kinds of dog training use. Keep unfriendly Dogs away. Protect yourself from dangerous dogs while walking, jogging, or bicycling Great for Joggers, Walkers, Delivery people, Mailman, Meter Readers, Sales people, Bicyclists, Police, Inspectors Also can be used a torch Battery indicator light shows you it's working Note: Used by proffessional trainer emits a high frequency sound that commands your pet's attention, so he obeys your commands. The sound is silient to people, but clearly audible to dogs and cats Highlights: Use pet trainer to help emphasize verbal commands(Heel Sit Stay Quiet Get Down) Pet trainer is effective to reinforce other trained responses ,such as commanding a dog to stop from running into a neigtbor's yard Correct your pet's bad habits by reinforcing your command Use pet trainer to: Eliminate excessive barking Eliminate jumping on people Stay off the furniture Stop clawing, scratching and biting Also pet trainer is an excellent aid to discourage stray or unleashed dogs from approaching you or your pet How To Use Pet Trainer: 1. Point your pet trainer directly at the dog or cat always using an outstretched arm from a distance of approximately 6 feet away(effective up to approx. 20 feet) 2. Give the verbal command, then immediately press the button for one or two seconds 3. Repeat steps one and two until your pet responds to your commands Specifications: Material: ABS Color: Black，yellow,white white: Length: 5.5cm Hole Diameter: 0.5cm black: Frequency:35-45HKZ Effective range :Melee Range Size: As the picture shows Power: Uses one 9v Carbon or alkaline battery(not included) yellow: Specifications: Powered By: 9V battery(not included) Material: Plastic Size: approx.13x4x2.6cm/5.12x1.57x1.02'' Power: Uses one 9V Alkaline battery(not included) Quantity: 1 Pc Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-3cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! No Retail Package Package Contents: 1 Pc x Dog Repeller/Whistle Flute