I must say this is a great little speaker, I love it. First of all it looks like a much more expensive speaker than it is, and it works and sounds beautiful. The flat design and styling would look great on an executive desk.
I have an HTC bluetooth enabled phone and it pairs a quickly and sounds wonderful, and has a great range on the bluetooth as well. I walked around into 2 or 3 different rooms in my house with the phone and left the speaker on my coffee table, it had no problem maintaining the connection.
It has several really nice features as well. The center button performs 2 or 3 different functions one of which is a pause button for whatever you are listening to. You can have it on your desk and if someone walks in just hit the illuminated button on the top middle of the speaker and it immediately pauses whatever is playing on your device, push it again to pick up where you left off.
The speaker also acts as a handsfree phone accessory, if someone calls while you are listening to music you just hit that nifty little button on top, and it answers the phone and routes it through the speaker that has a built-in mic.
One more feature I really like is it has its own volume control, many accessory speakers do not, my son has a speaker for his ipod and it does not have its own volume control, the volume is only controlled by the source device. This speaker however allows you to turn the volume up and down on the speaker directly without taking the phone or device out of you pocket.
Basically you can put your phone or ipod in your desk drawer out of sight, and have just this slick little speaker on top of your desk and still be able to adjust the volume, pause the music, and answer the phone all from the speaker, awesome!
It comes with a stereo-mini cable so you can use it on devices that are not bluetooth enabled. It also comes with a USB cable to charge it with using a computer or USB charger.
Besides being bluetooth it is also NFC enabled, I do not own any NFC devices and am not able to comment specifically on this feature, but based on the rest of the speaker's performance I would expect it would also function as described.
Over all this speaker has great sound quality and you can't beat the price, highly recommended.
Amazing Bluetooth Speaker