Crystal clear stereo audio with ENC: wireless headphones with built-in 13mm graphene audio drivers with professional audio tuning and separate sound chamber design. Provides deep bass and stereo sound effects. Equipped with 4 microphones and ambient noise cancellation technology, which effectively reduces the loss of sound quality by 90% and ensures clearer conversations. Bluetooth 5.3 Chip: The in-ear headphones use advanced Bluetooth 5.3 chip, paired with a high-sensitivity antenna, which provides a more stable connection, faster pairing, lower latency. LED digital display: The wireless in-ear headphones feature a unique LED display technology that shows exactly how much charge is left in the charging cradle and earplugs, so you can capture the remaining power of the charging cradle and the charging status of the earplugs in real time. With multiple charging options: the wireless headphones can be charged via Type-C and wireless charging. Each full charge takes less than 3 hours. The headphones can be used for up to 7 hours at a time and the charging case can charge the headphones up to 5 times.