... mill!5. Verity and complete software, stable and reliable6. Have a lock, anti-theft functions7. Widely used in the bus, building ... open & closePer day 5 times, 7 days a week, free timeTiming play 7 days a week, free set the play program everydayAlarm ... the volume of sound in the different timeStorage card lockHave a anti-theft lock in the case, equip 2 sets keyOther ...