The details:
Size - 3.5 in length and 2.3 in circumference
Material: ABS plastic
100% waterproof
Modes: 4 strengths of vibration and 4 patterns
If you've been paying attention to the review scene in the last long while, you know that the tango has one of the strongest, most rumbly motors out there, especially for a bullet vibe. Now, it's no Wahl but given it's a little rechargeable bullet I don't expect that. (I also wouldn't complain if we could get a tiny, rechargeable, wahl though) it comes in pink and blue unless you get the anniversary collection, in which case it's a gorgeous shimmery purple that I am in love with (and comes paired with a sync of the same color).
There are 4 pure vibration strengths and for me, being a lover of really, really, strong and rumbly sensations, I almost exclusively use the top level. Now, most reasonable people will probably be content with #2 or #3. The patterns are, well, patterns and if you're someone who likes patterns you should know that they are the usual we vibe wave, tease, pulse, and cha cha. To cycle between these you push the single button on the bottom, which you press and hold to turn on and off. I'm not the biggest fan of this style since if I accidentally count wrong and miss my setting I have to hit the button a bunch of times to find it again. I have managed to not turn it off by mistake though, which is good.
To charge the thing you use the little magnetic dongle that's included and plug it in to either your own brick or a computer. I hate that it doesn't come with a dedicated brick, and that it's SUPER finicky to get the magnets to stay attached. If you don't get it perfectly still when you attach it there's a good chance the vibe will move and bam, not chargin. Have a cat? Bump, not charging. It's annoying and it is mind boggling that this is an improvement over the old one.
Note: I did get this toy at a discount at my work, but this review is entirely my opinion.