1.With External antenna 2.Support TF/SD card 3.With FM radio,USB 4.Unique waist drum,colorful Newest best loundly sound ... : 150~1800Hz(±3dB) 3. SNR : ≥80dB4. Loud Speaker : 2 inch ( external Diameter 45mm ) 5. Line in : Configure 3.5mm Stereo's ... ,iphone,PSP,U disk,mobile phones,computers,Headphones and FM radio. Enjoy Music Anytime Anywhere!