I recently purchased a Jabra BT500 to use with my Blackberry. I am thoroughly pleased with the Jabra. On one charging I can use it for at least 2 days and it can be recharged from my computer using the usb cable supplied with it. It is so light weight I sometimes forget I have it on and the quality of the sound is excellent, I've been told from those I was talking to. Also it was simple to set up. The only fault I could find with it is I wish I could turn the volume up slightly higher.I would recommend the Jabra BT500 to anyone who is in the market for a bluetooth headset.Alan Tincher