... Speaker, you can enjoy the music from mobile phone, MP3, MP4, PC, and other audio devices. It features ... you full of praise. Mini Mobile Phone Speaker can play MP3 format music from SD/MMC cards (MMC, SD cards ... 3.5mm audio cable, Vol- button, vol+ button, play/pause button, SD slot, and DC 5V jack. Turn ... the 3.5mm audio cable, you can play music sourcess from mobile phone, MP3, MP4, PC, etc. This SD ...