V6 Aluminium Portable TUBE iPod Nano Touch iPhone 3GS 4 Docking Speaker Charger 

V6 FITS AND CHARGES 30-PIN iPhone 3GS 4 4S

You will be surprised how loud this handy speaker can be. This trendy aluminum iPod Speaker Tube is everything you've been looking for in a speaker. Featuring 3W RMS per channel, power by four AAA batteries or DC and with its patented "wide stereo effect", which lends itself to three dimensional sound, "the tube" is as cool a speaker as it is a nickname.  Another particularly alluring aspect of "the tube" is its size.  Standing at a minute 18.6cm x 4.8cm x 4.6cm, this dock and speaker is probably the most efficient iPod solution on the market.

Compared to V2 or V5 version, it is a little bigger and it has 50% more power. It also has USB Flash Drive plug and play function.

 Specifications and Feature: 
  Number of speakers: 2 micro-Titanium drivers housed in a single speaker unit.
  Loud speaker: 1.5 inch (External Diameter 40mm) Magnetic Resistant 4ohms
  Speakers Rated Power:6W(3W+3W) 3W RMS per channel (2-channels)  THD=10% (in RMS with wide stereo effect)
  Frequency Response: 150Hz to 18kHz (+-3dB)
  Signal and Noise Ratio of Power Amplifier >=60dB
  Connectors: iPod docking connector, 3.5mm stereo line-in socket.
  Flexible Power Source: Supports 5V USB Port, 4xAAA size batteries or 5V Mains Adapter  (Charging facility only with a 5V 1A AC-DC mains adapter, Original Apple iPod/iPhone USB charger can be used with this speaker with the USB power cable included in the package. ).
  Dimensions(H x W x D): 186mm x 48 mm x 45mm
  Power supply: DC 5V 1A or 1.5A (Better Power)
  Weight: 185g

Compatibility:
  Charging of iPod is only possible with a compatible mains charger, computer USB port and Battery power may not charge iPods due to the low voltage output.
  Dock and charge 30-Pin iPods, iPod Touch, iPod Nano, iPhones, iPod photo, iPod mini.
  Any sound source via 3.5mm audio line-in cable such as iPods, iPhones, iPads, MP3 Player, Laptops, MACs, Mobile       Phones, Portable DVD player

Included:
  ONE Portable Speaker
  USB to 3.5x1.35mm Jack Power Cable (to be used with a USB port).
  3.5mm Jack Analog Audio Stereo Cable