1,Mini portable speakers for mp3 mobile laptop,support SD card 2,Apply to mobile phone, computer, MP3/MP4,digital devices Overview : ... design- support MSN/IQC chating and listening3,Built-in FM radio function4,High-fidelity magnetic speakers, wonderful movement, the perfect ... , optional power adapter for use.Apply with all music players and digital products with 3.5mm audio plugs. Specification :Rared ...