Mini USB TF/Micro SD Card Speaker For MP3 MP4 Player Laptop+FM+Radio 1.manufacturer with reasonable price 2.Built lithiumbatte ... , Portable Audio Player, Mobile Phone, Computer, OutdoorChannels2 (2.0)Special FeaturePortable, MiniPlace of OriginGuangdong, China (Mainland)ColorBlack, silver, blue, yellow ... setsWhole weight: 15.5 Kgs Mini USB TF/Micro SD Card Speaker For MP3 MP4 Player Laptop+FM+Radio