Rechargeable and Portable: The Ultrasonic Dog Repellent features a 1200mAh rechargeable battery that lasts up to 60 days, making it for on-the-go use<br> Multiple Modes for Effectiveness: With deterrent and training modes, this device emits high-intensity ultrasound waves to deter aggressive dogs and lower-intensity waves to correct bad behavior<br> Convenient LED Flashlight: Equipped with a high-power LED flashlight, this device is for nighttime dog walks and can help scare away dogs when needed<br> Effective Anti-Barking Solution: Say goodbye to excessive barking with this multifunctional device that prevents noise pollution and helps train your pet to behave properly<br> Compact and Portable : The Ultrasonic Dog Repellent is lightweight and easy to carry, making it for use both at home and while out and about with your pet<br> Specification:<br> Color: As Shown.<br> Material: ABS.<br> Note:<br> There might be a bit color distortions due to different computer resolutions.<br> There might be a slight errors due to different hand measurement.<br> Package Includes:<br> Built in battery: 1200mAh<br> Packing list: 1 * Multi functional noise and dog barking prevention pet trainer