I bought this for my BB 8530 because it seemed to have the best features and reviews for under $30 shipped BT Headset. It has the same 2.1 BT standard and the other protocols that come with my new Curve 2, and is rated 6 hours talk 160 hours standby. It charges from empty in an 75 minutes.
I was surprised how small and light it is. The first day I wore it to the mall, and I got compliments on it.
At first I was concerned that the earpiece doesn't fit into the ear like other models do, but then I figured out how to properly rotate the silicone earpiece that is seals the speaker onto your ear opening. Basically, the looped part of the silicone is deflected by part of your ear cartilage, which creates enough force to accomplish this light seal. It's just enough force, because I wore it off and on all day with no discomfort. With this working so good, I figure you have to be playing sports or something to need the over-ear loop... I don't need it at all in everyday circumstances. This loop just slides out. I'm using the medium silicone piece that comes installed. A larger and smaller one are also in the package. Now that it's all adjusted correctly, the motion to install it in my ear is quick and easy.
I prefer the textured plastic to the shiny one I typically see in stores, because it doesn't show fingerprints. Regardless, it's still attractive. The translucent silicone does not show earwax flakes at all.
There are no annoying blue flashes. There is one tiny status LED and it's hidden from view when wearing the earpiece. This can also be disabled as instructed in the manual.
Pairing was easy, and once done the connection is automatic. Nothing to fuss with, it just works. Range is fine when the phone is in my pocket or on the desk nearby.
There are lots of features for controlling the phone with the power, volume, and answer/end buttons. The power button is well recessed, you would never press it by mistake. The volume switch is a tiny lever that self-centers, and pressing the center will mute the phone. Adjusting muting and volume actually adjusts the volume on the phone display, you can watch the speaker level change on the phone display. Using the answer/end key properly actuates voice dialing and other features as described in the manual. But you don't have to use these, you can just turn it on, put it in your ear, and do everything from the phone.
The charger is lightweight, and narrow enough to put alongside my BB charger in the same standard dual electrical socket. However, the prongs do not fold down, nor is there a prong cover. At least the prongs are smooth and probably won't damage anything in luggage. With 6 hour talk time, I expect the only time the charger leaves my house is when I am out of town.
The only complaint is that there is no hard or semi-hard case available. And of course, it's disappointing that there is no case at all provided. I ordered a small zipper case elsewhere on Amazon. Wandering around stores I noticed very few earpieces come with cases. Disappointing, I think they should. I would prefer a sunglass-style spring clamshell type myself, so it can be opened with one hand. I thought I'd mention it in case Nokia is listening.
The sound is good, I have no complaints about the volume level and the sound quality for voice. I've asked those on the other end of the call how I sound, and they say fine.
I tried music, and it was like old AM radio. I would expect this, since it is not made for playing music. It does not have stereo AD2P of course, so it isn't made for such a task.
Overall, I feel like the couple hours shopping, comparing models and reading reviews, really paid off for me. I don't see any reason for paying more for a voice-quality BT earpiece. I'm glad I didn't skimp on the features by buying a cheaper one either. It's near perfect.