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: Where does the music device go? Does it fit inside the speaker somehow?
Document: Perfect little speaker to mount on your handle bars and go for a ride. Went on a 20 miles bike ride that lasted 2 hours today and the speakers lasted the entire time. Volume is controlled by your mobile device. It's loud for it's size. Can't say anything negative about this little guy. It makes our rides much more enjoyable!
I have several bluetooth speakers but this offers a bit of fun that the others don't have and that's why it can be not only a fun gift, but can also help you sport your own style.The sound is rich and full and bright for a tiny little speaker--the sounds are clear no matter what style of music you enjoy.I was able to charge the speaker easily--simply plug it in with a USB port and you are good to go!
I have to say that of all the Bluetooth mini-speakers that I've seen, the Ivation Bullet is one of the most innovative and versatile ones. It paired easily with my Kindle Fire HD 7" tablet as device "Sports Speaker." I ran one of my music playlists, and the sound quality was remarkably good for a device only 1" in diameter. Vocals were very clear, and drum riffs weren't bad at all.
I went from room to room and inside bathrooms and closets and it played flawlessly the entire time. Standing in a bedroom closet with my iPhone at the opposite end of the house I could barely hear the music since I was 70-75 feet away from the Bullet with about 3 walls separating me from the speaker so I had my wife stand by the speaker. Even then it played flawlessly!PROS:1. Stunning bluetooth range.2. Great play time to charge ratio.3.
This little speaker makes big sound. Great for any time on the go, riding around town, or sipping brews on the porch with friends.
nice speaker. great sound. just enough volume. I started a job at 9 am and finished at 3pm and it was still banging away. six hours. nice to know when I go bike riding. I would have given it five stars if it were not for the hold down strap. other than that, it's definitely worth the price.
This small bluetooth speaker has amazing sound for its size. I was incredibly impressed by this little unit! It packs in lots of sound, features, and accessories for under $20.There are a number of capable bluetooth speaker units out there, but this one distinguishes itself in several areas. First, it is designed to go with you in sporting activities. It is a convenient shape and form to connect to bicycle handlebars, or other sport equipment.
I've been looking for a bluetooth bike speaker for a long time! I had previously owned this portable speaker that had a zippered inside to hold the mp3 player and battery compartment...piece of junk! It was impossible to mount to my bike and the sound was weak!. THIS little sucker is Loud! and it's bluetooth, and rechargeable! It's soo lightweight and powerful I almost can't believe it!
Love this! Was exactly as described and arrived in time. Fit on my bike stem and has a really good sound.
And that's the last I saw of the card. I pushed it in far enough that it should have either connected or would be pushed out by an ejector spring. Instead, it fell through into the guts of the device.
Answer: You can connect the music device with a cord which is included and plugs into the headphone plug. Or use Bluetooth OR do what I do and put your music on a mini San disc and insert that into a slot on the speaker and it will play directly from the disc.