If you are looking for a lightweight speaker to travel with you, why not check out the Mai Metal Portable Speaker. It’s a lightweight speaker that features a 1.5 Watt amplifier and a built-in rechargeable Li-Polymer battery that delivers enough juice for up to 8-hours of music.

The speaker connects to your portable CD player, MP3 player, music phone, laptop, iPod and iPhone via a 3.5-mm audio jack. The Mai Metal Portable Speaker is just $29.99.

HipBox from Pure-Acoustics is a portable speaker that will let you connect any audio device whether it be your iPod, iPhone, iPad, laptop etc. It looks like it lives up to its name since it looks pretty sleek and hip and portable.

The device also has a SD card slot, is rechargable up-to 4 hours and comes in some neat colors. The HipBox will cost you just $39.95. It’s one of the coolest designed portable speakers we’ve seen in some time.

Bluetooth speakers have been around a while for use with notebooks, mobile phones, and MP3 players. Most of the Bluetooth speakers available aren’t really intended for outdoor use due to the fragile technology and lack of batteries.

CY-FI has released what it calls the world’s first Bluetooth sports speaker that is designed to be easily portable and used while biking, boating, camping and for other outdoor activities. The device supports Bluetooth-A2DP enabled cell phones, PDAs, and MP3 players.