I purchased a set of these with the IPod adapter included. Standard Shipping was quick and fast. The headphones themselves feel as if they are very fragile due to their flexibility which is good for comfort, but bad if you don’t handle them carefully. They are very comfortable and come with S,M,L ear buds which is very nice. They are very lightweight and you can hardly feel them there, even though they look like something you would see in Star Trek. I wish Sony had used a mini-USB to charge the unit instead of a 3v plug…why you might ask? Well I could have used any type of Motorola car charger to always keep the unit ready AND charged on the go. That being said, they do have pretty good battery life. The Sony bluetooth adapter works flawless and is already paired for your IPod. All you have to do is charge the headphones before cranking them up. The controls are at the back of the right ear unit where you can change the songs and volume with a small toggle. Volume is controlled on the headphones, so no matter how high or low you turn the volume up on the IPod, it will not work. I had them up and running within 20 seconds after popping the BT adapter in and turning them on. The adapter runs off your IPod power, so make sure the IPod is charged. It also works with 4th gen IPods and IPhone 2G(first gen). Just a caveat, when you plug into the IPhone, it will say the accessory is not compatible and try to take you to airplane mode. It will work, but as for using it as a headset to take calls, it will not!!! I tried everything and it won’t accept. Also, IPhone is not setup to work with ANY BT headphones(to play music) without the A2DP adapter(Motorola or Sony, etc). That being said, I thought the sound quality was good, but there was NO BASS…worse than a base model factory car stereo. This unit could easily have gotten a five star rating with better sound. You might be better off buying the larger Sony headphone BT21IK, or BT21G(same model just one with the adapter and one without). The IPhone issue is frustrating, but definitely not Sony or any other manufacters fault…we have APPLE to thank for that! I may try the Moto Rokr S9-HD, as it had good reviews with exception to the battery replacement…they will work with the Sony BT adapter if you were wondering. In the Sony unit, the battery can be replaced by the way, so with proper care, they could last a LONGGGGGGG time. Overall was satisfied, just bummed about my missing BASS!!! Everything else was very crisp which is why I listed my title as “Best Bluetooth Headphones.” Where else can you find quality like this with no wires???UPDATE: I have had the chance to work out with these at the gym. I mainly weightlift and found that sometimes the earbuds may slip out of your ears. Not a biggy, but just a little annoying when you have to push it back in. My regular bluetooth headset got lost that I use for my PS3. I figured I would see if these headphones could be found by the PS3……and it DID!! Much to my surprise, the PS3 found it after I hit “register new device” then hit the pairing button. I got a little bit of feedback from the microphone, but with a few minor adjustments I could hear in stereo and talk loud and clear. This headset is starting to prove itself and might knotch another star if I can find other great uses! By the way, the sound improves the further you push these into your ear canals, so use the set of ear buds that are large enough to fit snug, not just laying there.