Abstract: A headphone of convenient assembly and package includes a first earpiece and a second earpiece. The first earpiece has a tubular first casing and the first casing includes a first ear plug. The second earpiece has a tubular second casing and the second casing includes a second ear plug. The first casing has a clasping portion at an end opposite to the first ear plug. The second casing has a clasping recess at an end opposite to the second ear plug for receiving the clasping portion. Therefore, the first earpiece and the second earpiece can be assembled together into a tubular single piece, benefiting the first earpiece and the second earpiece for being packaged and carried, thus improving the convenience of the headphone.