HIFI Stereo & Dynamic 13 mm & Dynamic controller CVC8.0: The good compound titanium diaphragm dynamics and the serious amplifier tube make music clearer. BlackView Airbuds 6 Wireless headphones A 13 mm large dynamic controller with a diaphragm composed of PU and sensitive peek can provide a clear and balanced sound with richer, sharp details, highly soft range to deep deep. Last bluetooth 5.3 & connection with connection with A smart click: Blackview Airbuds 6 Bluetooth 5.3 wireless headphones is completely updated to provide a faster and more stable connection and transmission, stronger anti -interferences, lower delay and lower energy consumption. The load box uses a connection of a key and the headset will recognize and automatically connect with the smartphone. Comfortable touch and response control. Made of resistant abs and durable PC materials, and covered with a very polished surface, each ear plug weighs only 3.2 grams, which can reduce fatigue caused by using it for hours. The unique translucent design makes it easy to check if the headset is inside.