... portable speaker,Mp3 speaker 2. Made of bamboo,unique design pro-enviroment,melodious tone. 3.12W YM003-2,2.0 mini Mp3 Speaker ... directly and suitable to all the device of the audio frequency with output.2. Made of Mao Bamboo,Enjoying the remote nature pure ... and other international certificates and a number of Patent certificates.Whether in the area of appearance, structure or manufacturing processes, ...