This is for a brand new Fi-Hi Voltron White Stereo Speaker Backpack 3D Glasses Fi-Hi Voltron Stereo Speaker Backpack 3D Glasses Fi-Hi STEREO BACKPACK has a built-in 3000 milliW stereo amplifier and water resistant speakers for listening to music without headphones. Fi-Hi's are open-source and easily connect to any iPod, mobile phone, MP3/CD player, hand held game or multi-media device with a 3.5mm stereo mini jack. Fi-Hi requires 4 - "AA" batteries that will provide over 6 hours of non-stop block-rockin' tunes. Fedex Smartpost only available for the CONTINENTAL USA, others use Priority Mail option. This is for a brand new Fi-Hi Voltron White Stereo Speaker Backpack 3D Glasses Fi-Hi Voltron Stereo Speaker Backpack 3D Glasses Fi-Hi STEREO BACKPACK has a built-in 3000 milliW stereo amplifier and water resistant speakers for listening to music without headphones. Fi-Hi's are open-source and easily connect to any iPod, mobile phone, MP3/CD player, hand held game or multi-media device with a 3.5mm stereo mini jack. Fi-Hi requires 4 - "AA" batteries that will provide over 6 hours of non-stop block-rockin' tunes. Fedex Smartpost only available for the CONTINENTAL USA, others use Priority Mail option. This is for a brand new Fi-Hi Voltron White Stereo Speaker Backpack 3D Glasses Fi-Hi Voltron Stereo Speaker Backpack 3D Glasses Fi-Hi STEREO BACKPACK has a built-in 3000 milliW stereo amplifier and water resistant speakers for listening to music without headphones. Fi-Hi's are open-source and easily connect to any iPod, mobile phone, MP3/CD player, hand held game or multi-media device with a 3.5mm stereo mini jack. Fi-Hi requires 4 - "AA" batteries that will provide over 6 hours of non-stop block-rockin' tunes. Fedex Smartpost only available for the CONTINENTAL USA, others use Priority Mail option. This is for a brand new Fi-Hi Voltron White Stereo Speaker Backpack 3D Glasses Fi-Hi Voltron Stereo Speaker Backpack 3D Glasses Fi-Hi STEREO BACKPACK has a built-in 3000 milliW stereo amplifier and water resistant speakers for listening to music without headphones. Fi-Hi's are open-source and easily connect to any iPod, mobile phone, MP3/CD player, hand held game or multi-media device with a 3.5mm stereo mini jack. Fi-Hi requires 4 - "AA" batteries that will provide over 6 hours of non-stop block-rockin' tunes. Fedex Smartpost only available for the CONTINENTAL USA, others use Priority Mail option.