Item Name: Hand held Dog Repellent; Main Material: ABS; Main Color: Black; Item Size: 13 x 5 x 2.5 cm/5.12" x 1.96’’ x 0.98"; Wrist Rope: 18 cm/7.08’’; Weight: 0.14kg/4.93oz; Package Include: 1 x Handheld Dog Repellent 125 decibels of ultrasound for the dog’s auditory stimulus is very large, the longer you stay in this position, the greater the damage to him, it would quickly run away. Drive the Dog Principle: Dog repellent is mainly used in outdoor environment, prevent the dog attacks, when dogs trying to attack you, you can take out the dog trainer, emit ultrasonic to dog Lighting: Upon the button at the bottom of the gear selector switch to “Light”, products at the top of the button switch “ON”, can be used as a flashlight. Training Dogs: Upon the product at the bottom of the gear selector switch to “Train” button, products at the top of the button switch “ON” the machine can produce ultrasonic, at this time you can train the dog. Prevent attacks: Touch the product at the bottom of