After charging the unit I couldn't get it to turn on. I contacted Plantronics' tech support and they replied really quickly, within hours (kudos for that). They wanted me to send my unit back to them and they'd send a new one, but I had to pay for shipping both ways. After searching their forums it sounds like the problem might be that the unit is so old it can't hold a charge (mine is dated February 2007). I don't want to take a chance that I'll get another old one (or a refurbished one as one user on their forums suggested) so I'm not bothering to send it to them; I'm just asking for a refund from Amazon. It's a shame. I was really excited about this headset (I liked the idea of a lanyard instead of having to clip it to something).On the plus side, the unit is very lightweight, the controls are a good size and feel easy to learn and use, it comes with different sizes of ear plug thingys and it even comes with an audio-out cable to hook it up to speakers or a stereo. Also, the image doesn't show it, but there's a small slide-able clip between the plug and the call control button so you can clip the cord somewhere if it's weighing down the ear plugs, and the length of the cords going to your ears are different; one is much longer to go around the back of your neck.