LEADING BLUETOOTH 5.4: Never worry about losing the connection in your pocket! 030 is engineered with the latest Bluetooth 5.4 technology that provides a more stable connection (wireless range 33ft/10m) than Bluetooth 4.0. Allows you seamlessly stream entertainment from any other Bluetooth-enabled device(cellphones, laptops, tablets, etc) DESIGNED FOR SHOOTING AND HUNTING: NRR 22dB/SNR 27dB. Durable recessed microphones could increase tinny environmental sound when the sound is less than 82dB while reduces wind noise, providing enhanced communication for hunting, shooting, etc; And the earmuffs with slim low-profile cups with cut-outs perfect for firearm stock clearance&rifleotgun use DURABLE COMFORT: Only 0.63lb, The slim hearing protector is designed to be lightweight and provide ultimate comfort even for a long time using. Wide ear cups with ultra-soft cushioned ear pads and the headband boasting a thick layer of padding help them fit snugly around ears with no pressure; Earmuffs with high-quality gel allow you to have a better touch and better durability than others; Designed with telescopic and ergonomic headband could fit any shape and size of the head WIDE APPLICATION&: Compact folding design for easy to carry. Recommended for gunfire range, hunting, woodworking, mowing, chainsawing, and any noisy environments.