real carbon fiber Aluminium bumper case for Iphone 4 4g

1.CNC cut  Aluminium bumper

2.different real carbon fiber sheet colors available

3.Antenna signal strength is a bit of a question mark, too: the frame has several small foam pads inside to enhance the singnal

4.despite some cool touches, such as a right side grip groove, the option of custom laser engraving, and a built-in metal Sleep/Wake button, the design is seriously impractical.

5.Welcome OEM order

Conceptually, Jcsportline Aluminium+real carbon fiber for iPhone 4 ($80-$100) might strike some people as a good idea, and this machined aluminum version for  Apple's Bumper case is indeed attractive: it adds an additional metal frame to the outer edge for the iPhone 4, initially in either an all-black color scheme or in black and pink -- red, yellow, and silver variations are planned for future release,despite some cool touches, such as a right side grip groove, the option of custom laser engraving, and a built-in metal Sleep/Wake button, the design is seriously impractical. Small, recessed headphone port and Dock Connector holes make non-Apple accessory incompatibility a given, four teensy-tiny screws and a mini wrench need to be used to open and shut the case, and the carbon fiber back panel -- a $20 add-on above the $80 base price -- is supposed to be attached to your iPhone 4 with adhesive rather than fitting inside JC-tech frame