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: hello, what kind of batteries use this speakers?
Document: I am very impressed witth the sound quality. This a very neat uncomplicated poduct. I ordered 3 differnt blue tooth speakers. The seller sent this one the fastest. The ease of use was amazing. I will be djing a wedding in a few weeks I am going to set up for of these and wow my guest.
The only accessory that I kind of don't like is the charger. It's not a micro USB charger so you can't use your phone charger to charge it. Basically, if you lose the charger then you won't be charging. I'll recommend this if you're looking tight for cash and just looking for a speaker until you can get one of better quality.
recieved this early and used it for music in the bathroom. the battery last not long at all. there are two speakers and only one works. it is loud but it could be better.
I got the Jabra Drive Bluetooth in -Car speakerphone and if you are looking for hands free bluetooth, I would recomend the Jabra Drive and not the Ematic speakerbox. For Music, the two speakers Ematic works better then the Jabra Drive.
Excelent speaker for it size, and the 8 in 1 accesory kit increase their value, with two front speakers and a rear passive radiator the ematic give you great sound, not too clear at high volume and not much bass, but for the size and price is a good option for every one.
I just popped this baby open and already the side door had fallen off. But I figured that's ok. This thing isn't made to last through a ship wreck. After plugging through to play, I realized that although advertised as dual speakers, I am only hearing (and feeling) sound coming from the front side.
This speaker works great,I prefer it to my laptop speakers.Now I can hear every word in a movie clearly,at a decent volume.I couldn`t find a mode button,so if I want to listen mp3`s on the TF card,I have to eject it and put it back in.I highly recommend this at this price.
Overall this is a very good product for the price you are paying. It works well and seems to be pretty reliable as I had mine bouncing around in my old pickup that didn't have a stereo in it.PROS:Long battery lifeBluetooth has a long rangeAdjustable controls on the device to control playback and volumeMultiple methods to charge the deviceCONS:The speakers are not loud enough at their loudest setting.
the sound from the speakers is good, i mean it is comparable to the 5W, 2.1 channel logitech computer speakers. I bought this item specifically to take conference calls on my computer and phone. The biggest problem is that the mic is unidirectional and when you speak into it, you sound hollow and like you are speaking from a great distance from the mic to the person on the other end. Definitely a deal breaker for me.
I have one of these Ematic speakers I received for a gift-larger size. I tested them against each other when I ordered the new speaker w/accessories and no problem-this is a GREAT deal for the $,  and the sound is great too. This package deal is the best online. I would recommend to anybody! And the accessories can be used on many devises besides the speaker-the cost alone on the accessories pays for the speaker!
Answer: Actually this unit has a removable end cap with a removable Lithium battery - it uses a Nokia B-5 battery.  The JamBox battery is NOT user replaceable and costs about $40 PLUS POSTAGE to send it back to the mfr.