Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: How long does it take to charge, and how long does a charge last?
Document: This speakerphone does a good job when needed. It has a rechargeable battery, so it does not need to be plugged in during use. The battery has a good charge -- it seems to last for several hours. You can connect any device that uses Bluetooth or USB to send out an audio signal, and it will work with this speaker. (There is no "audio in" jack, so you cannot plug in a simple audio line.
Love it. I use it all the time for work. I have even used this as microphone to capture song ideas and audio notes. Works great over Bluetooth and holds a charge long enough that I have never noticed it not being charged. Works well with my laptop and my phone. Very clear audio.
Brilliant addition that turns any Bluetooth enabled cell phone into a solid speakerphone (unlike the tinny sounds of most built-in phone speakers). Also integrates perfectly into Lync and other online meeting tools. Charges easily with USB, and the charge lasts long enough that I've never had to consciously charge it. Just use it every week or so in a web conference.Downside: The only downside is that the volume is only loud enough to support meetings in a relatively quiet room.
Purchased to take calls at home office. Had it plugged into computer. In less than 6 months, speaker's microphone would cut in and out. Quickly reached a point where no longer able to use. Going to try a different brand now!! !
For other soft phones, you might have to do some configuration yourself.Portability: good. The supplied cover is good, so I can throw it in my backpack and take off.I cant find any flaws in this speakerphone. I feel this is a very evolved product and I just love it!
People on the other side of the line are surprised when I say I'm on the speaker. Again and again when I ask. This is amazing and exactly what I've been looking for so long for the work conference calls. (I use iPhone through Bluetooth connection).
Installation is seamless with USB. Bluetooth may take a bit of navigation with your laptop or mobile devices to pair the device. Bluetooth at time experience delay.Our conference call using Skype is now a guarantee clear calls, no more, &#34;can you hear me ok?&#34;. Great for small meeting room up to a size of 8 or just as your personal desktop speaker/mic.
I chose this device because it was rechargeable (no batteries), portable (it's small and light), and reputed sound quality. It met my expectations in all three areas. My only wish was that it had a longer USB cord, or at least one that disconnects so I could choose a longer one (the attached one is about a meter long).
Bluetooth is such a lifesaver and all devices that connect in such a way are simply great. I connected this to my macbook pro via USB with no problems. You can use it for Skype and have convenient call on and end buttons. The sound was crisp and clear. The bluetooth connection was pretty simple as well and I tried this in one of my cars to take a call and worked like magic. It is lightweight and so convenient to travel with.
I think this is a really nice Bluetooth speaker. It is compact and professional in appearance so it would be great in an office setting. It also comes with a padded  zipper pouch to make it convenient to take with you on business trips or vacations.Its claim of "get started in under 5 minutes" is spot on. Extremely easy to connect with voice instructions to let you know the next step. Clear sound and easy to use controls, not to mention cool flashing lights!
Answer: It seems to last a number of hours.  I charged it initially and have had only one time where I ran low.  It gets used two to three times a week and I only charge it once per week.