Feature:1. Dual-Mode Enhanced Ultrasound Functionality: Elevate your training experience with our advanced bark deterrent, offering both Normal and Enhanced Ultrasound modes. Designed with a specially calibrated ultrasonic frequency, this device efficiently tackles a broad range of training challenges while effectively minimizing unwanted barking and aggressive behavior.2. Extended 32ft Control Range: Stand out from the crowd with our bark deterrent's dual ultrasonic sensors, engineered for precise directionality and a stable, effective control range extending up to 10m/ 32ft. This ensures effortless and efficient training, whether you're indoors or out.3. Nighttime Training Made Easy: Featuring dual LED strobe lights, our bark deterrent ensures optimal visibility and maximizes safety and training effectiveness in low-light conditions.4. Quick Type-C Recharging: Equipped with a high-capacity rechargeable battery, our device takes just 2 hours to fully charge and boasts a working time of 15 days, depending on usage. The included Type-C charging cable makes recharging convenient through various devices like power banks or laptops, so you never have to compromise on training effectiveness due to low power.5. Safety First: Designed with the well-being of both pets and humans in mind, our bark deterrent automatically enters protection mode when long-pressed for 10 seconds. This prevents any additional auditory harm to dogs without impacting human health.Specification:Item Type: Handheld Ultrasonic Dog TrainerMaterial: ABSUltrasonic frequency: 25KHzDistance: 10m/ 32ftBattery capacity: 850mAhSize: Approx. 12.6 x 5.5 x 2.8cm/ 5 x 2.2 x 1.1inWeight: Approx. 100g/ 3.5oz Package List:1 x Ultrasonic Dog Trainer1 x Hand Strap1 x Charging Cable1 x Manual