As for connectivity, the speaker charges via Micro-USB -- a cable is included but no power adapter -- with battery life rated at 8 hours, which is about average for this type of speaker (for these small speakers battery life ratings tend to be anywhere from 6 to 10 hours). Wireless range is the standard 30 to 40 feet (technically it's 30 feet but you can do a little better at times).
Additionally, there's a audio in port for connecting non-Bluetooth devices (cable not included) and the BTV1 does offer speakerphone capabilities so you can take calls through the speaker from your smartphone or tablet (if, say, you're using Skype).
When I listen to these small Bluetooth speakers, one of main concerns is how well they handle a wide variety of music without distorting, particularly at higher volumes. The BTV1 came across as well as most sub-$100 Bluetooth speakers (at least compared to the ones I've tested) and sounded relatively natural and fairly clean. It's a bit hyped in the treble (it's a little bright), so it can exhibit a touch of harshness with certain tracks. But for casual listening, it acquits itself pretty well.
The speaker's got a bass radiator on the back, so it helps to place the speaker near a wall to get some reflection and eke out a little more low-end. While the BTV1 a little thin sounding, it's not as thin as some smaller Bluetooth speakers I've tested. In other words, it's well suited to small rooms, but you shouldn't expect rich, full sound out of this little guy.
I also felt that it was more an indoor speaker than an outdoor one, though you can certainly take it outdoors; at 1.2 lbs it's light enough to easily move around. Alas, no carry pouch or case is included.
AmazonBasics Portable Bluetooth Speaker BTV1 is one of the better "generic" wireless Bluetooth speakers I've tested. There's nothing terribly exciting or special about it, but it gets points for being modestly priced while sounding decent and avoiding looking cheap.