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Feature: 1. Long Battery Life: Built in lithium ion 450mAh battery for MP3 MP4 player. Playback time is up to 30 hours and can be fully charged in 2 to 3 hours via USB charging cable to meet your usage needs. Specification: Item Type: MP3 MP4 Player Package List: 1 x MP3 MP4 Player 1 x Charging Cable 1 x Earphone 1 x Instruction Manual 1 x Plastic Box |