Carefully select only the functions you really need. Fits perfectly in small ears [ "Oh, it's light." Amazing ultra-light weight, stable with ear hooks ] It is the same as a sheet of paper, and it is about 4g on one side, and it is comfortable to wear so that you forget that you are wearing it. It keeps you focused throughout the day and is very useful in various scenes such as studying, working, and playing. In addition, the feather-like ear hooks fit gently and naturally, and you don't have to worry about the earphones falling out of your ears, reducing the burden on your ears when using them for a long time. 【 Expressive sound quality, cut out ambient noise when talking! 】 】 Compatible with the AAC high-end codec, you can enjoy stable high sound quality with QCY's unique tuning that does not compromise on sound technology. With a carefully selected 6mm dynamic driver hidden in a petite body and HiFi high sound quality with little stagnation, it envelops you with a pleasant bass that does not tire you to listen to from clear highs. In addition, the ENC noise canceling function eliminates environmental sounds such as wind sounds, city noise, and noise! We will deliver only your precious words and help you communicate more deeply. [ Left and right individual communication method, only one side can be used ] Smart fully automatic Bluetooth 5.1 connection, no physical manipulation required! When the earphones are taken out of the case, they are instantly connected to the device at the same time as the automatic power on, and when they are put back in the storage case, they are automatically powered off, and when you use them, you just need to take out the earphones. 【 Small but very long lasting 】 It has a long-lasting battery that is one of the top among the QCY models, achieving 7.5 hours of continuous playback in stereo mode. With a total of 26 hours of regeneration power in combination with the case, you can use it with confidence all day long. This one for business trips, work, and outings! [ IPX4 waterproof performance, low latency mode installed] The waterproof design according to "IPX4" effectively prevents rain and sweat from entering the inside. From outdoor activities to daily routines such as the gym, running, housework, and cooking, you can add the joy of earphones to your life. In addition, it is equipped with a "low latency mode" that allows you to enjoy watching videos and playing online games in a state close to real-time. [ Excited to use the app ] With the QCY dedicated app, you can enjoy more smart wireless technologies such as customizing touch operation, adjusting the sound quality to your liking, detecting the position of the earphones, and adjusting the volume.