Motorola H17 Bluetooth Headset

Pros: call on 2nd line beeps in quietly (though I've never switched from one phone to the other)
Battery level warnings
"phone 1 connected" "phone 2 disconnected" - warnings are helpful

Cons: uncomfortable ear hook
speaker generates heat and kinda burns my ear if worn too long

Summary: After using this for 2 months is has developed a funny problem! Everytime I take a call on my blackberry, after I terminate the call, my ipod (from my iPhone) starts playing in my ear. Prior to the using the BB, I am not using the iPod. I have checked the iPhone before I place my BB calls and the iPod indicator is off. I dont' know what is triggering it to play! So, it's not a terrible thing, but you should be prepared for it and keep your volume moderate.