The next generation in WorkTunes hearing protection and entertainment, the 3M WorkTunes Connect Wireless Hearing Protector with Bluetooth Technology combines a modern, comfortable design with hi-fi sound quality. This innovative hearing protection lets you conveniently make and take phone calls while you're on the job. Equipped with Bluetooth Wireless Technology, these ear-protective headphones allow you to stream the entertainment of your choice from your smartphone or other mobile device, while providing ear protection in noisy environments.