Buying an item from Canada


Can anyone explain to me what is involved in buying an item from a Canadian seller and shipping into the U.S.  The item would be valued at $2500 CAD. What type of duty and taxes will be due?  The item is built in China. Will the shipping take longer than usual?  Thanks for any help. 
taylorro
Folkfreak is correct; if the item is from a private seller there shouldn't be any fee. My purchases were from a dealer. For electronics I still recommend using UPS.
I purchased vinyl and CD's no problem thru Canada Poat.
I purchased a 4K preamp from a Audiogoner who lived in Canada. There was no duty tax and it went Canadian Post and then on the the USPS. It took 5 days from Vancouver, Canada to me in New England. I also purchased a CD player from another Gentleman in Canada. It took like 3 days via Canadian Post.  This past Summer, I purchased a new cartridge direct from the Canadian Distributor and I still didn't pay any duty taxes.  It came via UPS and took 4 days.  Easy Peazy.
In my experience, from a private seller, shipping takes double the normal time to go through customs and such.
I purchased a used amp for approx. $2,650 that was made in the US, but I still paid customs clearance fees of approx. $70 and had to fill out paperwork faxed (yes faxed) from US customs.   It was a hassle.  YMMV.
Be careful though, i bought a $1200 CD player from Canada and UPS wanted COD of $295 upon delivery.  I almost paid it but when refused they left a phone number to call, well the next day i called the ups 1-800 # instead and it was explained to me that custom hold fee is only $53 and that delivery person didn’t always have the latest info.  Upon showing payment confirmation # to the same delivery person the very next day, it was released.  SCAM?  Just to add, The second time around the older delivery person brought a ups partner so i couldnt help think it was a body guard.  😏. Did anyone else have this inflated COD charge experience?