JBL line has two kinds of materials:

Before the batch of leather is a rubber material, a sense of matte, there is a clear flexibility, line body is relatively soft, the color is black, white, yellow, red four;

Later batch of skin for the PVC material, smooth and bright, line body is relatively hard, the PVC bag on the words, the color is black, blue, purple, red four.

Two lines are only the same skin, shape, length, copper, the performance is the same