... 3. factory good price 4.with alarm colock mp3 speaker with SD card slot and FM radio2. compatible with SD,MMC card,LCD 3 ... . 7. Digital FM radio 8. With Calendar, clock, alarm clock, FM radio and recording functions,9. Compact and lightweight. SpecificationOutput(RMS):3.0W ... supply:DC 5VOperating Voltage: DC 3.7V Accessories USB cable3.5 Standard stereo audio cableUser Manual, Certificate Our factory