Q1、Does this cup holder attachment fit a sodastream bottle?
This fit 9cm dia of bottle, pls just check the dia of your bottle is ok. 99% of bottles are fiited.
Q2、Does this cup holder attachment hold 12oz soda cans?
Q3、It says 3in1, but it's unclear if can i hold headphones, controller, and drink all at the same time. picture looks like controllers or drink?
I don’t think it can do all three, unless you’re really good with super glue. It’s either controller or drink, plus headset.
Q4、How many devices can this stand hold at the same time?
The headset pendant can simultaneously accommodate a game or audio headset and two game controllers.
Q5、Is it hard to install and remove? Will it leave marks in the original place?
Supper easy to install, it’s just one bolt to tighten and the cup holder/controller holder just slides on. I doubt it would leave marks unless it’s very soft wood and you tighten it very tightly.
Q6、What is the inner diameter of the cup holder?
You can fit a glass or cup of 9 cm or 3.54 inches.
Q7、Can this be mounted sideways? Like on the leg of a desk, instead of on the actual desktop.
Yes, mouted side of table with fixed rack.
Q8、What's the thinnest width that it can clamp on to?
This desk organizer clamp on to desks up to 50mm thick and as narrow as 5mm for a near universal fit on most desks.
Q9、Is this headphone holder great for a gift?
I like it. I am working from home and I hang me headphones at the end of the shift and for the weekend.
Q10、Looks like a great drink holder but an issue with possibly spilling a drink onto your headset?
The headphone holder can rotate 360 degrees, you can turn the headphone hanger to the back of the cup holder, there shouldn't be an issue with possibly spilling a drink onto your headset.