... with FM radio 3.5 AUX in and headphone jack Portable Speakers for Mobile Phones Main Fuctions and Features:1. Multifunction music ... card,MMC card,plug and play the music in memory.2. Build in digital FM stereo radio function, with rotatable antenna ... supplied to other speaker.Specification:1, Sperker Specifications: 2"*22,Rated Power: 2.5W*2 4Ω 3,Frequency response: 150Hz-20KHz4,Sensitivity: 80db ...