Here are some facts about this Yamaha Stagepas 400BT.
It is well packed, pretty robust unit. Everything is protected and secured in the box.
Decent weight but can be carried by one person in short distances like from door to lounge. If you carry the speakers one by one, using the carry handle, I would say it's quite comfortable.
Not lightweight but lighter than most active/powered PA speakers. Total weight is 18.3 kg (individual speaker is 7.7 kg and mixer is 2.9 kg).
There are tons of features. Like it comes with this Ferrite Core that you clip/attach to the speaker cable. (Excellent absorption of high-frequency noise. Minimises noise without affecting signal quality).
Also a one knob master EQ where you can dial it to suit your venue i.e. for speeches, live performances or boosting the bass for dance music.
And as the name itself, Stagepas 400BT. It means 400 watt with bluetooth connectivity for wireless streaming of music.
This is it for now. I will learn more about the unit whilst using it and then I will update you for more reviews and demos. Cheers!
Here's the link if you're interested to buy one: https://www.thomann.de/gb/yamaha_stagepas_400bt.htm?partner_id=30701