Condition is new Sound Enhancement Technology 2.0 Open ear headphones feature a 70% enhancement in bass, thanks to the latest headphone chip and 16.2mm oversized graphene composite diaphragm speakers. These speakers are 3 times larger than other wireless earbuds , providing you with a more powerful and focused sound box. Enjoy rich and deep bass in any environment, elevating your music listening experience. Comfortable All-Day Wear With our original gravity balanced design, the over-ear earbuds evenly distribute their weight around your ears, reducing pressure on a single point. Made of ultra-lightweight and skin-friendly materials, weighing only 10g, you can wear them for extended periods without discomfort. Say goodbye to ear fatigue and enjoy sensation-free wearing throughout the day Enhanced Calling Experience Equipped with 4 microphones and ENC Noise cancellation technology, these open ear earbuds offer 20% louder call clarity compared to other models. The unique directional sound transmission technology and vertical ear canal design prevent sound leakage, making them ideal for Zoom conferences and driving while ensuring your privacy. The latest Bluetooth 5.3 plus IPX5 Waterproof Our open back headphones use the latest Bluetooth 5.3 chip, reducing signal interference by 65% and increasing transmission speed by 75%. faster and more stable connection. 12oz USPS Mail Misc2