... mini megaphone 3 LED screnn 4 Support SD/USB, with FM computer speaker Model: Q3Image Key Specification 1, material plastic2, output ... equipped with a 3.5mm audio jack, including cell phones, MP3 players and computers.9.remark re-charging timeL 3-5 ... time.Any enqury, please let me know. Portable Megaphone with MP3,FM,SD ,USB flash