The Double Tap R1 Bullet Headphones have an eye-catching design and a durable built made using real 40 caliber, 22 caliber and 32 caliber ammo casings. The Bullet headphones are equipped with 10mm dynamic drivers to supply crisp clear sound with a nice bass that is not too over powering but still give you some nice bump. These headphones are not made with cheap pre-made wires. The cording is made from a unique mix of materials -durable silicone wire covered in nylon cord. This multi-layer cording is designed to take the stress off of the wires. Every set of Double Tap R1 headphone is handcrafted along with being individually tested by hand.