Comfortable to Wear: Ergonomically designed, weighing only 12 grams, it is painless to wear and comfortable to wear all day without feeling a load. Rotate the handset 180 for left or right ears. Ear hooks make the headphones fit your ears perfectly, and two different size ear cups can better fit and protect your ears. Noise Reduction: Built-in high-definition microphone, using advanced CVC 6.0 noise reduction technology, can block background noise (such as wind, traffic or crowd), providing clear audio and natural sound. Unique HIFI original sound quality HD vocals, low, medium and high tri-band equalization. You can enjoy high-quality music and clarity even when you are in a noisy environment. Smart Bluetooth Headset: The headset uses a CSR Bluetooth 5.0 chip and a built-in high-resolution decoder to make the signal longer. High-speed transmission efficiency, 10 meters without obstacle transmission. It makes it easy to listen to music and answer calls while driving, traveling or working in the office. Suitable for driving and business. Color include: black, red, blue Size: 76.8x43.8x33mm Weight: 12g Package includes: 1pc* Bluetooth headset