KAYNN Bluetooth Noise Cancelling Ear Muffs with Rechargeable 1500mAh Battery, 25dB NRR Hearing Protection Headphones Noise Reduction Safety Earmuffs for Adult Industrial, Mowing, Snowblowing

• 【Bluetooth Technology】Our ear protection bluetooth offer a "Bluetooth chip" that is more stable and has a wider range of connections than Bluetooth 4.0 (80 feet wireless range), enabling freedom of movement in the work environment. Making and receiving calls, allows you to enjoy smoother HI-FI sound quality music from your phone or any other Bluetooth enabled device

• 【Safety Professional Certification】NRR 25dB noise reduction rating, certified protection by ANSI S3.19-1974 (American National Standards Institute), effective protection of hearing, suitable for construction, mowing, sawing, gardening, woodworking and other noisy environments. With a 4-hour charge time and up to 40 hours of long-lasting playtime in Bluetooth mode, the safety ear muffs keep you entertained while you work

• 【Button Control】Adult noise cancelling headphones volume button design, easy to adjust the volume, switch songs, answer the phone or hang up the phone. Built-in 1500mAh lithium battery, the charging speed is faster and the supply time is longer. Package: KAYNN037 Bluetooth hearing protection, 3.5mm connector, charging cable, black leather bag (easy to carry, dustproof), and instructions

• 【Durable and Comfortable】The bluetooth ear protection are made of military-grade material and are durable. The adjustable headband fits a variety of head shapes, the soft and comfortable earpads support long-term wear, the hearing protection with bluetooth earpads snap-in design for easy replacement

• 【After-Sales Guarantee】All KAYNN earmuffs pass strict quality control before shipment and well packed in elegant box. We adopt the quality material and technical craftsmanship. We offer SATISFACTION WARRANTY includes 1 YEAR money back guarantee for quality problems and a new replacement-solution. If you have any questions about the bluetooth work headphones, please feel free to contact us. We will provide you with the best solution and serve you 24 hours a day