I have confirmed that it works perfectly, with no issues. The original box is not included. Made in 2020. The color is silver gold. Accessories include the power cord and remote control. The remote control's back cover is loose. Batteries are included. There is no radio antenna. The instruction manual is a copy and has some writing on it. It is equipped with HDMI, Bluetooth, and Wi-Fi, allowing for easy connection to various devices. It also supports HEOS and Apple AirPlay, enabling smooth streaming. I mainly used it with a USB memory stick and Bluetooth. It's an amplifier with truly no flaws, but I am selling it to declutter, so I'm reluctantly putting it up for sale. I hope someone will cherish it. Thank you very much.