... function, 2.connect internet 3g EDGE, 3.Peel 520 for itouch 4G peel 520 for ipod touchSpecifications: SIZE : 121 x 65x ... .Set: Infineon baseband chip.Color: Black only .Support ipod touch Firmware version(JB): 3.0,3.0.1,3.1,3 ... ,3.1.3,4.0,4.0.1. Peel 520 itouch 2g,3g,4g 2nd generation