Note: 1. The size of the plug is standard 5.5 mm 2.1 mm, please check your device before placing an order. 2. Before use, please carefully read the labeling on the surface of the charger. 3. Do not disassemble or modify the charger. It is strictly prohibited to use the charger when the power cord is damaged, otherwise it may cause electrical shock, fire, and damage to the charger. 4. Do not touch the charger with wet hands. If the charger comes into contact with water or other liquids, immediately cut off the power. 5. Do not short-circuit the charger, do not mechanically vibrate or shake the charger, do not expose it to direct sunlight, and do not use the charger in high-temperature places such as the bathroom. The device is not waterproof and must be kept dry. 6. When unplugging, hold the charger instead of pulling the power cord, as pulling the cord may damage the wires.