New Mini Hamburger Portable Pocket Speaker For IPhone PC Notebook MP3 MP4

Specification
Set of expandable/ collapsible hamburger style speakers
Built-in rechargeable batteries last up to 6 hours
Charges via USB cable (included) ; Charge Time: approx 2 hours
Attach together magnetically for perfect portability like traveling
Speakers feature built-in retractable 3.5mm Auxiliary cable & retractable micro USB cable
expandable mode provides obvious bass effect
Compatible with any device using 3.5mm audio jack (cell phone, laptop, ipod, tablet etc..)
Color: Black , white, pink red, green, blue, purple, orange
Loudspeaker Output: 3W x 1 (RMS)
Speaker: 3 4Ω 2.2 W
FREQUENCY Response: 180Hz ~ 18kHz
Signal-to-noise: ≥89dB
Dimension (L*W*H) : 50*50*35MM