Models equipped with Qualcomm's Bluetooth 5.2 chipset QCC3046! Enjoy impressive high sound quality with a wide range of sound with a hybrid driver [ Qualcomm's Bluetooth 5.2 left and right simultaneous connection method ] It is an ultra-compact completely wireless earphone that realizes a stable Bluetooth 5.2 connection that communicates with the device side at the same time on the left and right sides with Qualcomm's "True Wireless Mirroring" technology. Stable communication that is less susceptible to radio interference in the listening environment, and advanced automatic connection can be easily used even by beginners who are not good at operation. [ High-end codec aptX Adaptive support ] The technology that transmits while changing the transfer bit rate according to the surrounding radio wave conditions has realized a listening environment without noise or interruption. [ Hi-Fi high sound quality created by dual drivers ] It is equipped with a hybrid driver unit that combines a "dynamic type" that is good at low frequencies and a "balanced armature type" that is good at high frequencies. With QCY's unique tuning, you can enjoy high-quality sound with a sense of realism in a well-balanced stereo acoustic space with rich bass range, delicate midrange, and clear and clear treble. [ Equipped with 4 microphones ENC call sound quality ] Both earphones are equipped with two omnidirectional microphones each. Bluetooth 5.2's high-definition ENC noise reduction function for calls effectively reduces ambient noise, allowing you to enjoy clear and clear HD call quality that is less affected by environmental sounds. [ Fast charging of both earphones, 65ms ultra-low latency mode ] Both earphones support fast charging that can be played for 1 hour with a 10-minute charge. In addition to the normal mode, you can enjoy video viewing and action games without stress with an ultra-low latency game mode of 65ms that does not feel sound delay. [Auto pairing, wear-on sensor] When you open the lid of the storage case, it instantly connects to the device at the same time as the automatic power on. When you put it back in the case and close the lid, it will automatically turn off, and when you use it, just take out the earphones and put them in your ears! In addition, the ultra-lightweight body weighing 3.7g on each side is equipped with an IR wearing sensor, and the convenience is further improved with an auto-switch function that automatically regenerates when the earphones are removed and paused during music playback and reattached within 10 seconds. 【 Use the app for more fun and freedom! 】 】 You can enjoy smart wireless technology such as one-touch easy connection, button customization, EQ settings to your liking, finding earphones, and volume adjustment by operating the QCY dedicated app.