8 b8 {% U3 \9 ]) S7 J4 d# M随时可以给iphone4充电的back up battery case~ 9 V4 O* m6 g/ y9 }2 p具体信息可查询:http://www.123inkcartridges.ca/accessories-product/4G_F38B.html; J1 @6 i E+ o) [5 N
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iPhone4 Power Portable Back Up Battery Case (1400mah) 9 [5 F/ k+ Q( x* { e 3 ]+ V9 L: b+ @; _) b3 r 2 y9 F. ?4 e$ O0 ?1 P6 M3 y- S, p2 P9 q . B' I4 n& @ u8 o9 K/ K4 z, h/ GThe Youtube video shows you how the back up battery case works for your iphone 4: http://www.youtube.com/watch?v=SRntwhMckB4&feature=player_embedded