I brought one of these on my motorcycle trip to South America. It was probably the largest, heaviest "non-essential" item on the trip. It has a built in rechargeable battery so it's perfect for camping, or those spots where the electricity goes off at night. It also charges the iPod when the unit is plugged in, so you don't need to carry a separate iPod charger. The sound is really surprisingly good for such a small sound system.