Bamboo is know to be the fastest growing, most economic and versatile wood material in the world. which is also know to have a higher compressive strength than wood, brick or concrete and a tensile strength that rivals the strongest metal materials. These headphones are built to be durable and long lasting. For the Bam Jamz Oval Headphones, 4-Color printing and laser engraving are available with our Xpress Service Turn Time option. 2-Color printing as well as laser engraving are available for Standard Service Turn Time. Feature your client's logo on the ear pieces and promote their brand. Or get creative with your art for each ear-piece. The second method offered is Laser Engraving. Laser engraving is the method in which a laser is used to engrave an object and it's perfect for creating custom products. This technique doesn't use ink to create your image, it uses a focused laser to etch your art onto whatever surface you want. Laser engraved products work best with 1 color designs. On the Bam Jamz Oval Headphones, laser engraving will enhance the look and feel of your headphones pulling in a crowd. Promo America offers the best turn times around. Choose our Xpress Service turn time and receive your product in 7 business days. Standard 35 business day turn time service is also available.