Product benefits: 1. Remote control training, integrated automatic barking stop dual function machine, saving consumer costs. 2. The unique anti-bark technology is only effective for barking from dogs currently wearing collars. 3. The company has been dedicated to pet training products for many years, and has accumulated rich technical experience to ensure more stable product quality. Product specifications: Product color: red Product material: ABS/webbing/silicone; Battery capacity: 300mAh lithium battery; Power mode: USB charging; Strap size: 75CM adjustable (23CM–65CM) Remote control: 13.2x4.8x2.0CM Bark stopper: 6.4x3.8x2.5CM Product Accessories: Remote control transmitter * 1 Bark stopper1 PP Strap1 USB data cable*1 Conductive column * 2 pairs Indicator lamp * 1 Instruction Manual * 1 copy