Question 1

How do you connect it to the tv?

Accepted Answer

I use it on a PC that is connected to the TV thru the HDMI port.  There are USB ports on my TV but I haven't tried that and don't need to do it that way.  If you have a USB port, try the receiver in the port.  If not, you cannot connect it to the TV

Question 2

Refurbished by whom?

Accepted Answer

I would imagine seriously damaged & defective returns are scrapped & saved just for the parts. The biggest problem with these that causes returns is that the letters rub off the keyboard within a few weeks with moderate use or a few months of light use. If the letters E, R, T, I, A, S, & H (the most used ones) start to rub off while it's still soon enough to return them, most probably will. All they have to do is replace the keys from a supply of new ones, or a pile of scrapped keyboards to refurb them. I guess it is possible to even print new letters on the keyboards, or stick on new letters. Some returns are where there's nothing wrong with the keyboard but the user didn't know how to use it properly, or just didn't like how it worked. So the return is checked to see if they work, & boxed back up as a refurb or open box item. I think it's an incredibly dumb design that the letters would rub off in a few weeks. Didn't they think people would actually touch the keys? After that, I never would buy another Logitech keyboard again. I'm typing this on a 19 year old keyboard, & nothing has rubbed off after heavy use. The wires on Logitech mice are so thin that they rarely last a few months without breaking a connection. How much thought does it take to figure out that a wire should hold up more than a few months with normal use? Logitech used to be a favorite, but is going downhill. 12 year old mouse by them still works, but the wire on a couple of the exact same model bought last year broke in a few months. If it's just me, then how come their old versions still work fine?

Question 3

Does this come with a usb dongle for bluetooth?  i see the extender, but is that the dongle?

Accepted Answer

RF nano receiver thats in the battery bay. Bluetooth is a different signal

Question 4

Does the Wireless Touch Keyboard 400 Plus comes with ?

- Unifying USB receiver
- 2 AA batteries
- User documentation

Thanks,

Frank

Accepted Answer

Yes.  Very happy with it.

Brand	Logitech
Name	K400
Model	920-007119

Keyboard Color	Black
Dimensions	Overall: 1.00" x 14.00" x 5.50" Touchpad: 2.00" x 3.00"
Type	RF Wireless

Power Source	2 AA Batteries
Operating Time	Battery Life (not rechargeable): Up to 18 months
Distance	33.0 feet

Operating System Supported	Windows 7, Windows 8, Windows 10 or later, Android 5.0 or later, Chrome OS
System Requirement	USB Port

Logitech Recertified 920-007119 K400+ Wireless Touch Keyboard with Built-In Touchpad for Internet Connected TV

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Item#: N82E16823126429