This is a fair quality, loud, midrange speaker for Bluetooth. Low frequency is weak. It doesn't sound bad and would be useful for playing background music for a small group, or as a boom box from a TF memory card.
I believe that TF is the pre-2005 name for microSD. There are buttons for play/pause,shared function buttons for forward and reverse. The USB input is type A, the power input is MicroUSB.
The TWS button next to the power button starts Bluetooth pairing. No directions are provided on how to connect two of these, or whether they can be then connected to a Bluetooth source.
Some sound from it can be heard all around. The pattern is two out of phase lobes of midrange pointing away from each other and cancelling at the ends. More low frequency comes from the sides than the ends. I played music with cklear content separation between changed and could not tell from which Lend tye sound was coming. Imo, it would work better if configured as a mono speaker.
Measured range with a Bluetooth connection is 100-10kHz, with a steep rise between 3kHz and 5kHz and strong falloff below 100 and above 9000.
The "light show" is two backlit rings where you can see one at a time changing color IF you are looking directly at it. The light progression is independent of music being played. The M button had no effect on it. I could not find a way to turn off the lights to reduce power draw.
It's a decent $225 speaker, but not nearly as impressive as its over the top listing.