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music toothbrush with 3 brushes function: a:music file size:20s,40s,80s,120,more b;single music 1)play one time 2)repeat 3)repeat with 2min timer(motor and music stop in 2 min) c:multi-music :free choose your favorate music 1)play one time for selected music 2)repeat for selected music 3)repeat for selected music with 2min timer(motor and music stop in 2 min ) working mode ;rotation frequency:5500times/min battery:3.0 v.(1.5vx2pcs"aaa") accessories:handle(1set)brush head :(1pcs) certification:ce-emc/rosh color;yellow ,blue,purple,green materials :high quality abs bristles:dupont nylon packing type:blister inner packing:100pcs/ctn interior dimension:29.5x6.8x4.5 carton size :60x30x40 product size:21.6x3.0 gw/nw:10.0/9.0kg 20'ft:315ctn/31500pcs 40'ft:665ctn/66500pcs 40h'q:798ctn/79800pcs