A device for training dogs

Device for training dogs Product specification: * Convenient compact size, fits in a trouser pocket. *Emits high frequency waves (20,000-40,000 HZ) that are inaudible to humans but extremely unpleasant to dogs and other wild animals. * Can be used to deter aggressive dogs or train pets to stop barking. * 100% odorless and chemical free * Will not interfere with other electronic devices such as televisions, radios, alarm systems or detectors. * Requires 9V battery (not included). * There is a built-in LED indicator that shows when the device is working. * Comes with built-in lanyard to attach to belts or carry easily. * Includes a built-in powerful LED flash for increased safety in low-light conditions. * Material: Plastic * Power supply: 9V battery required * Frequency range: 20,000 Hz – 40,000 Hz * Sound pressure: 135 dB * Operating range: can operate up to 7 meters away * Dimensions: 12.3 cm x 4 cm x 3 cm