Detail:

Function: Play music through iPod data port, Compatible with the iPod which without build-in speaker. Mini USB charging interface.
Advantage: Mini size, No need power. Support charging iPod/iPhone through mini USB adaptors, Such as the MOTORAL, HTC, BlackBerry etc mobile’s adaptors.
Disadvantage: Low voice. Mainly suitable for the iPod which without build-in speaker.

Specification:
Input: mini USB connector  >=DC5.0V/500mA  Compatible with standard mini USB adaptor. Such as mobile’s or PDA’s adaptor.
Output: >=DC5.0V/500mA

Function:
1 Play music, Connect to iPod data port, No software installation, No power.
2 Volume control: Use the volume keys of the mini speaker directly. 
3 Charge iPod: Connect to a computer or standard USB adaptor or APPLE USB adaptor through a standard mini USB cable.
Incidental accessories: Mini USB cable
Optional accessories: USB AC/DC adaptor,  USB DC/DC adaptor

Incidental Accessories: MINI USB data cable.
Optional Accessories:   USB AC/DC adaptor,  USB DC/DC adaptor.

Compatible: Nano3&4&6/ Classic/ Touch1