, ▁and ▁previous ▁track . ▁Other ▁operations , ▁such ▁as ▁scrolling ▁through ▁menu ▁items ▁and ▁cont rolling ▁the ▁volume , ▁are ▁performed ▁by ▁using ▁the ▁click ▁wheel ▁in ▁a ▁rot ational ▁manner . ▁The ▁ 3 rd - gener ation ▁i Pod ▁Sh uffle ▁does ▁not ▁have ▁any ▁controls ▁on ▁the ▁actual ▁player ; ▁instead , ▁it ▁has ▁a ▁small ▁control ▁on ▁the ▁ear phone ▁cable , ▁with ▁volume - up ▁and ▁- down ▁buttons ▁and ▁a ▁single ▁button ▁for ▁play ▁and ▁pause , ▁next ▁track , ▁etc . ▁The ▁i Pod ▁Touch ▁has ▁no ▁click - w heel ; ▁instead , ▁it ▁uses ▁a ▁touch ▁screen ▁along ▁with ▁a ▁home ▁button , ▁sleep / w ake ▁button , ▁and ▁( on ▁the ▁second ▁and ▁third ▁gener ations ▁of ▁the ▁i Pod ▁Touch ) ▁volume - up ▁and ▁- down ▁buttons . ▁The ▁user ▁interface ▁for ▁the ▁i Pod ▁Touch ▁is ▁identical ▁to ▁that ▁of ▁the ▁iPhone . ▁D iffer ences ▁include ▁the ▁lack ▁of ▁a ▁phone ▁application . ▁Both ▁devices ▁use ▁iOS . ▁ ▁i T unes ▁Store ▁ ▁The ▁i T unes ▁Store ▁( int rodu ced ▁April ▁ 2 9 , ▁ 2 0 0 3 ) ▁is ▁an ▁online ▁media ▁store ▁run ▁by ▁Apple ▁and ▁accessed ▁through ▁i T unes . ▁The ▁store ▁became ▁the ▁market ▁leader ▁soon ▁after ▁its ▁launch ▁and ▁Apple ▁announced ▁the ▁sale ▁of ▁videos ▁through ▁the ▁store ▁on ▁October ▁ 1 2 , ▁ 2 0 0 5 . ▁Full - length ▁mov ies ▁became