Bluetooth 5.0 Electronic Bluetooth Earmuff Noise Reduction Ear Muff This Bluetooth earmuff offers advanced wireless tech, comfort, and noise reduction for clear music, calls, and noise-blocking in any setting. Features: Fully enclosed ear-type design and advanced physical noise reduction technology effectively filter out environmental noise, providing accurate sound collection. With a high-quality diaphragm drive unit, delivering rich and precise sound reproduction for an enhanced listening experience. With soft and comfortable ear pads and adjustable headband design, it will not feel uncomfortable even if it is worn for a long time. It offers 360-degree rotation, allowing you to adjust to the most comfortable angle for a perfect fit and enhanced comfort. Equipped with Bluetooth 5.0 technology, it provides a more stable wireless connection and faster pairing speed, while supporting longer transmission distances and lower latency. Specifications: Material: ABS, PC Color: Black Size(LxWxH): 19.5 x 12.6 x 10.2cm (Approx.) Bluetooth: 5.0 Bluetooth Distance: 10m Battery: 750mAh Charging Time: About 4 Hours Endurance Time: Above 30 Hours Power Supply Method: USB charging cable power supply ( power adaptor not included ) Package Contents: 1 X Electronic Bluetooth Earmuff 1 X Signal Line 1 X USB Charging Cable 1 X User Manual Please note: Due to manual measurement, there might be a tolerance in the product size. Due to the lighting effects and shooting angles, the color of the item and that shown in the picture might have a nuance.