About this item Compatible with shock collars The magnet holds your collar in place and works well Cord length: 7.68 x 4.53 x 0.87 inches; 1.76 ounces 18W wall charger with built-in smart chipset provides over-voltage, over-load, over-heat, over-current, and short circuit protection Includes 2 x Charger Cord, 1 x 18W Power Adapter Dimensions: 7.68 x 4.53 x 0.87 inches; 1.76 ounces