The W12 is ergonomic designed for someone wants non-stop music while working out. It is wearable and secure fit so that users can wear it for hours without any discomfort. The neckband is made of thermoplastic polyurethane, which is environmentally friendly and lightweight. The headset ear tips are covered by metal which enhances the product texture. These stylish earbuds are also suitable for leisure use, and can be worn equally well with smart or casual attire.