Wide ApplicationThis dog repeller will help you drive away from the dog when you encounter a dog trying to attack your dog. What's more, the product equipped with advanced ultrasonic sound technology, which can be heard by dogs, so it can be used as a dog training device to help you train your dog. Moreover, this product also has the function of illumination with high brightness flashlight. 3 Modes FlashlightThe product has a strong flashlight, which can achieve three modes of constant light, strobe light, and SOS, suitable for you when walking your dog outside at night. What's more, the flashlight has a smart light sensor, which can adjust its brightness automatically according to the environment. Non-slip Grooves & PortableThe back of the dog repeller is designed with non-slip grooves, which can be better held in the hand. Also, it is a portable dog repeller that you can use both indoors and outdoors. LED IndicatorThis dog repeller is equipped with a LED indicator, so you don't have to worry that the dog repeller will suddenly run out of power. Chargeable & Long-lasting LifeThe 1200mAh battery has the power saving function, which can be extended to 140 days on standby. Therefore, the product can be used for up to 20 days after a quick charging of about 2 hours. Specification: Product Name: Dog Repeller Color: Black Main Material: Plastic Battery: 3.7V 1200mah Li-Po Battery Charging Time: 1-2 hours Work Time: 15-20 days Control Distance: 10M Size: 14*3.5*3.5cm Weight: 105g Package Information: Package Size: 17.6*4.6*4.6cm Package Weight: 135g Package List: 1*Ultrasonic Dog Repeller 1*Lanyard 1*USB Cable 1*Manual