Work tunes, bluetooth connect wireless hearing protector earmuff, noise reduction rating of 24 db, seamlessly stream entertainment from your mobile phone & any other bluetooth enabled device, high fidelity speakers provide premium sound quality, integrated microphone lets you make & take calls without removing ear protection, cord & antenna free design lets you move easily, simple single button interface allows you to stay focused on the job, audio assist technology provides operational & set up guidance without having to take off headset, flexible headband with cutouts to improve comfort when worn with caps, lightweight, durable design, soft, conformable ear cushions & low profile cups for comfortable fit, 2 hour auto shut-off with low battery indicator, built-in rechargeable battery charging cord included, compatible with non-bluetooth devices via 3.5mm audio cable not included, ac charging adaptor not included, device compatible with stand.