BEWARE I ordered this item (GK-3B for Bass) but got ...
926038
BEWARE I ordered this item (GK-3B for Bass) but got delivered the GK-3 (not for bass, but for normal Guitar). The sticker on the back of the packaging says GK-3B for Bass but on the actual item it just says GK-3. It's too small to go on a bass guitar.
4546598
The 4 1/4" to 3/8 mm  were not delivered as advertised in the order.  I started to send it back, but it was too much trouble and I needed the amplifier.  I bought additional adapters to get it installed.  It was not as advertised in the listing.  This is the third one I bought and the first two had the adapters included.  The third one did not I could not figure out how to correct the issue without starting all over and that was more trouble than it was worth.  It would help if you could contact a person from time to time or at least chat..
2605309
I waited almost a week for this item to ship and when it got here it said that it came from jimmy W. , which is not the company i bought it from, then i open it and it doesnt properly fit the 2.5mm jack it should.
2803143
The wrong item was in the box... the box was labeled with the item I wanted. I received Jaybird X2 ear buds instead I was excited of the mistake but they are broken and don't even charge !
3890648
I ordered the ANC3 and received the ANC23.  The 23 are very weak in the bass, as most of the reviews stated plus the 23's do not come with a case, just a little bag...all the reasons I ordered the ANC3!  Oh well...seems I will dispute charge.  Amazon is not what it was in the past.
4614328
I ordered a pair from Adroma, they only shipped me one, and  it looked just like the one in the addt  I  then ordered one from Rauken, when I received it, it did not match the one from Adorama, iit was a pale sky blue. They had the same item and product number but they were badly mismatched, I returned it. Then I called Pyle and explained to them the problem that I was having, they told me that their warranty did not cover cosmetics. I explained that both speakers were brand new, and all I wanted was a matching pair that looked like the picture in their add. But they refused to try to stand behind their produc and send me a matching pair.t.
I then ordered one from Sonic electronics, it had the same item and product number and it did not match either of the speakers that I ordered from Adorama or Rauken. Finally, I back oreered a speaker from the Adorama, the company that I received the one that matched the speaker in Pyles add, to my dismay, it did not match the speaker that they sent me earlier. I then sent both speakers back.
Pyle is a real piece of trash, four speakers, all with the  same item and product number and out of all four, I could not come up with  a matching pair. Pyle, the manufacturer even refused to try to send me two that matched the picture in their add.
1651090
Ordered this and instead received the N56VJ-DH71. On top of being the wrong machine, the listing said all the accessories came repackaged - the sub-woofer was missing. Trying to work with customer service right now to get this sorted out for a return since the only option for a return requires me to pay the initial shipping cost.

I will probably change this review once I am able to get the right device in my hands. Giving this more than one star right now only because the customer service is trying to help me out.
2612351
Please Please Please DO NOT order this item. Just because something is offered at a price cut, does not mean it's of good quality. I receive this item on Jan 11, and had to charge it to even test it. Then when I finally was able to test them out, I found that the audio I was hearing lagged the video clip I was watching on my computer. My final straw was when one of the ear buds snapped off (exposing the wiring inside) when I tried to change the ear bud pad. When I tried to snap it back on, it popped off again once I tried to put the piece in my ear. Obviously, it's unsafe to have exposed wire touching skin (especially if I'm intending to use these while working out and sweating). When I initiated a return with HighRise Fitness, they said they'd refund my money but I have to pay to ship it back. It's a good thing I get shipping discounts through my work.  Lesson learned: don't assume just because something is significantly cut in price, it's a good quality; and stay away from 3rd party vendors.
1726927
I ordered this item and I think they sent me something else. The two female ends of the splitter I received are red and white to indicate left and right (like RCA cables). When I plug headphones into the red one, it only plays sound in the right speaker. When I plug them into the white one, it only plays in the left speaker. I'm not sure how this item can be useful to anyone. I'll have to purchase again from someone else and hope I get what I need.
1756392
Ordered an "Electric Guitar" case and received a "Bass Guitar" size. Cant even return it as i am overseas now, so money not wasted. Please make sure before you order that you have the provision to return. Product quality is average (cant complain there).
3649400
I specifically ordered YCL-221 Bass Clarinet, but instead I got YCL-221 II model, which has significant tuning issues. I could have bought the II model in other web pages for $600 cheaper, but I bought in this one because it was the only one offering the model that I needed, so I could avoid the tuning issues. This was a "Sweet 15" present for my daughter that I will have to give her with issues that I paid to avoid.
1621040
im sure the stand is fine--Hercules makes a great product --- the one i got fits an acoustic and not a bass ---- amazon does not usually get it wrong. but this time they did. i will make use of it --- but booooo.
4233228
I ordered these headphones based on Amazon's description and KOSS's own website that they had 20-18,000Hz frequency response. When the item shipped the packaging clearly states 40-18,000Hz freq response.  That's 40Hz at the low end, NOT 20Hz as described online. That's a big difference in bass response.

I confirmed with a KOSS tech support person that their online specs for the KSC14 are wrong, and they are updating their site to reflect the actual specs. I don't fault Amazon for the incorrect specs because that's what the manufacturer said it was. I fault KOSS for not having the quality control to have their marketing/advertising match the actual specs of their products.

I'm returning this item for a refund.
4017922
Did not receive the 10c104 speakers pictured I received kicker 43c104 they are the same specs but not sure of the quality they will probably work fine for lower end (budget) woofers but beware you will not receive the speakers pictured. Also had to sign for delivery and missed the driver so had to wait a couple days before I could go pick them up at a FedEx store just FYI.....
140454
the item came after expected arrival date. both bass and amp were less than we expected. would not order from this site again.
4056577
Skip working with 1-2-3 music. I have had nothing but problems! They sent the part of the order incorrectly. I returned it the wrong item worth $500 more than the original item I requested.  Then they said they couldn't send me the original parts missing, they said they credited Amazon but it still has never arrive on my visa.  Skip working with them and save yourself a few headaches.
4043767
The description of the item when I purchased it is "a 2.5mm male to 3.5mm female".  As others have mentioned, the item I received is the exact opposite - a 3.5mm male to 2.5mm female.  This is of no use to me since my Blackberry already has a 2.5mm headphone jack that needs to be converted to a 3.5mm female in order to be compatible with the rest of the world.

Edit
This item is the HDW-15306-002.  If you need the item described (2.5mm male to 3.5mm female), it appears to be part number HDW-15306-001.