About this item Leading Bluetooth 5.3 Technology and Effortless Pairing: These wireless earbuds adopt the advanced Bluetooth 5.3 technology, providing you with 2X faster transfer speeds (80% higher than the previous generation) and a more stable connection, with almost no delay. Taken from the charging case, wireless headphones will be paired with each other automatically, and just hit on Bluetooth list to connect, avoiding complex operations and saving waiting time. 14.2mm Big Dynamic Speaker and 4 ENC Mics: The Bluetooth earbuds built in 14.2mm dynamic speakers, which can produce a wider frequency range and more detailed sound compared to smaller speakers. Besides, the wireless earphones are equipped with ENC noise reduction double mics to passively cancel 80% of background noise, allowing you and the caller to hear each other better and make crystal-clear calls with minimal background noise. 40H Playback and Dual LED Power Display: These Bluetooth headphones can be used for about 6