... -end technology,D class digital amplifier5.High storage to store a great deal of music6.LED indicator easy to operate7.USB high-speedy ... trip with MINI SOUND BOX ACCESSORIES:gift box,manual instruction, USB line,LINE line, bicycle tieback, sling,sack, earphone,charger( ... 1A),AC transformer charge:3 hours(optional)5.Interface transfer:USB 2.0 Full speed6.Audio format:MP3/WMA7.Work temperature:-18~808 ...