I got this because of the bamboo style. Usually, whenever you get an electronic device you are supposed to charge it up before using it for the first time. I charged this up the first time on my laptop and it was completely charge within a couple of minutes. Once it is full the red light goes out. This comes with a charger usb cord. The charger also has an audio cord connected to it so that you can use it via cord if your device does not have Bluetooth capabilities like older mp3 players and more. You can get you one here on amazon http://www.amazon.com/Portable-Bluetooth-Speaker-Sonancer-Rechargeable/dp/B016RER0P0 This also comes along with a nicely sized bag that you can keep the Bluetooth speaker in and the cord with a little extra room in it for a small device as well. The sound was crisp and clear. I did not hear any muffle at the max volume. At the bottom of this is the power switch that has a Bluetooth symbol by it and the word off. There is also a button that has the letter “m” by it; this is for answering a phone call or cutting one off. The “M” button is also for when you want to use the audio cord. I would highly recommend this speaker because of the style and great sound quality. I received this product at a discount in exchange for my honest and unbiased review.