Egg ID Speaker Seat for iPhone 4/4s Without Power to Amplify 19.5 decibels synchronize with chargering

Made of RoHs SiliconeSize: 80mm*50mm

Color: Blue, Black, Red, Green, White, Red, Yellow, Purple 

Different Angle Display of This Music Egg Speaker Seat

Its design has for phone's USB cable, you can use this seat as phone charging.

That's a really so lovely design for iPhone 4/4s seat with amplifer.

Music Egg Speaker for iPhone 4/4s