Instruction: Answer the given question using the supporting document.

Input:
Question: what is the warranty of the refurbished units?
Document: This sounds pretty good, although it crack/booms every 10 minutes or so and it is scuffed and netting is ripped because it is a refurbished product
Purchased these refurbished beauties after my creative 5.1 system of just about 10 years finally shorted out. I have zero complaints. They are loud, and the bass is for serious.
I bought a refurbished system from Amazon and I'm so glad I did. Hooked it up to my PC and the sound and quality is unsurpassed for the price. This great 5.1 system thumps and bumps all my music perfectly and my friends are always surprised at the price I paid for such a simple and quality system.
Quality and clarity on this unit is amazing. looks great too! speakers are defiantly nicer when mounted on the wall. I got mine refurbished , but its new to me and its great! the cables are great length-wise and the quality is great! nice bass, defiantly loud and pumping. highs, and mids are great too! defiantly a great system. shipping time was good on it too, recived it in a few days! defiantly go with this unit!
Iv had these speakers since 2005. Bought them refurbished on ebay for about $35. They work great and never had any issues with them. They can either stand on top of a desk or be mounted on a wall. The base of each speaker rotates so it makes the mounting easier. The sounds is really clear and the bass, when fully turned on, makes the whole room shake. The cables for the front 3 speakers are shorter than for the back 2 speakers. I highly recommend these!
The product itself might have been good. I had a previous set that lasted me forever until I gave it away after I traveled last year. Honestly, I thought the system would have lasted a bit longer. It seems that the item might have been refurbished or repaired by some lousy technicians. Within 45 days or so, I lost the money I spent purchasing that trash. The Sub-woofer completely stopped functioning. I unplugged it immediately thinking it might have been overheated but ever since it never works again.
I have had these same speakers for years and haven't seen anything better for the price, or even for quite a bit more. The surround speakers also have integral wall mounts. If you have a problem locating these at a reasonable price, Wal Mart still carries them new for $75. That was the best deal I could find. Sellers on here are asking more than double that for refurb units. Don't be a victim.
I purchased these 5.1 speakers from a 3rd party seller on amazon 2 years ago. 3 months ago they stopped working, no power when I tried to turn it on. Contacted Logitech and they could not do anything for me. I then contacted the seller (hdetron) via email and within 24 hours they replied and said they are sorry but they only warranty their product for 90 days, but they are willing to replace it for $33 which would cover the shipping and return shipping of the speaker.
wow! now this set of Logitech X-530 5.1 Speaker System kick some ass...  this item is worth the moneyi would buy another soon for my lg tv..... :)
this was a great deal that sound was awsome i only wish the cables were a bit longer and that there were less of them.
Answer: When I got mine it was 30 days. I still have the speakers & love 'em.