This is pretty amazing for the price. I will not build or tear down. My only mistake was that I had recently bought a Marshall Emberton loudspeaker and used it for comparison. With this you can't go wrong if your purchase looks and looks only! When the volume exceeds 3/4 there is absolutely no bass in its sound, almost none but a little on the ear, up to about 2/3, 3/4 volume. With that it cost $20+. If you're looking for $300 sound for a fraction of the price, keep scrolling. If you want something with BT and don't care about sound quality but look decent then this is for you.
AUNA Connect 150 Black 2.1 Wi-Fi Internet Radio Music Player With MP3 USB Port, AUX & Remote Control - Black
16 Review
KLIM CD Boombox Portable Audio Player with FM Radio, Rechargeable Battery, Bluetooth, MP3, AUX, Neodymium Speakers, and Upgraded CD Laser Lens (2021 Edition)
11 Review
Experience Dynamic Audio with Panasonic SC-UX100 CD & USB Wireless Bluetooth 300W Mini Hi-Fi System Shelf Stereo
19 Review
JBL Horizon Bluetooth Alarm Clock Radio with Multiple Alarms, Soothing Ambient LED Light, Automatic LCD Display, and Dual USB Charging (White, AM/FM Radio)
41 Review