E-Case iSeries Case for Nano with Jack Integrated, waterproof 4-pole headphone jack is compatible with remote controls on headphone cables Model-specific, high-clarity windows allow direct access to touchscreen functions Every case is individually tested to meet IPX7 standard of withstanding submersion in 1 meter of water for 30 minutes One-step, waterproof Seal Lock zipper and rugged RF-welded seams guarantee protection PVC-free materials and UV-resistant windows