Review on 💻 POWSEED 70W Slim Universal AC Laptop Charger for HP Dell Acer Asus Toshiba Lenovo IBM Compaq Samsung Sony Gateway Fujitsu | 18v 19v 20v Power Adapter by Dawn Clark

Just received this and it makes a very loud electronic chirp/hum as it charges the laptop. I use it with 2 different laptops. It successfully charges both laptops but makes a loud buzzing/chirping noise. Has anyone else had this experience? I don't feel safe leaving it running unattended. I think I'll just return it, but I'm not sure if I should exchange it for a replacement or just return it right away. We're thankful for any hint. Edit 12/27/2017: ZOZOplus Vendor Customer Service did a great job with me to resolve this issue. They refunded me the original purchase price of the item. ZOZOplus is now sending me a replacement unit to check if the original item was defective. Once I receive the replacement unit I will run some tests and update this review with my results. Although I am disappointed with the first item I received, I repeat that ZOZOplus's customer service did a great job of helping me with this problem. Edit 1/3/2018: The supplier sent a new power supply unit. So far, the new device has been completely silent. It also runs cool - the original, noisy device got very hot. If the new adapter still works, I assume the first block was just a lemon. Here, too, the customer service of the provider was excellent across the board! (While changing my rating to 4 stars.) I will update this review if anything changes.