... with MICRO SD card 1.built-in MICRO SD/lithium battery. 2.Certificate: FCC,CE,ROSH Sporting Portable Mini Speaker ... FM radio module, can store 30 channels external replaceable type lithium-ion battery. PropertiesOutput power: the RMS 4W (2W + 2W) in ... DC 5V / 1000MAFunctions:Digital amplifier, built-in MICRO SD/lithium battery, decoded play function. TF card Packing Information: Product Size 81 ...