1. Pocket Foldable Speaker
http://www.gizfever.com/product_info.php?products_id=628

Features:
# Pocket Size, easy storage
# Suitable for any MP3/MP4,PMP,iPod device with 3.5mm stereo plug (iPhone can’t directly support, must use with iPod/iPhone Earphone Adapter)
# with Power On/Off Switch
# with Power indicator
# Using 2 x AAA Batteries (Battery not included)
# Can use external power supply 5V power adapter or USB Power Cable
# Product size: 10.7 cm x 8.0 cm x 2.5 cm

Package:
# Pocket Foldable Speaker x 1
# USB Power Cable (Optional) +1.00 USD