Features: By emitting high-frequency sound, it effectively suppresses dogs' Barks without reason and help owners restores a peaceful environment. Compacts and light weight handheld, convenient to carry around, suitable for traveling or daily use, meeting the needs of different occasions. Environmental protecting and economical, there is no need to worry about long-terms use. According to the sensitivity of dogs, audios frequency and intensity can be adjusted to flexibly respond to different dog breeds and individual differences. Adopting humanization, the ultrasounds emitted is innocuous to dogs and will not cause physical harm, maintaining the health of dogs. Specifications: Color:Two Elections Dimension:11.2x5cm/4.41×1.97in Component:abs Package Includes: 1pc Rechargeable Anti Barks Device note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.E