[Supports aptX HD, a codec with an amount of information equivalent to high resolution] Like the base model, in addition to SBC, AAC, and aptX, the cable connecting the left and right cannot be used as an antenna, so it is difficult to install it in completely wireless earphones. Also compatible with 48kHz/24bit). You can enjoy high-quality sound equivalent to high resolution that can be expressed with 256 times (theoretical value) finer details than standard codecs SBC and AAC. *aptX HD is compatible with many smartphones released after the release of Android 8.0. Before purchasing, please check whether your smartphone is compatible. [Design unique to earphones] The duralumin exterior boasts high durability and minimizes the effects of external noise, and uses Pierre Nakano's traditional antique gold and black coloring. The outer layer of the bridge cable is also decorated with gold, and the design has been updated so that it looks like a fashion item when worn around the neck. [High quality sound for listening and calls] The bridge cable that connects the left and right earphones is made of OFC (oxygen-free copper) material to protect the purity of the sound. In addition, to improve call quality, it is equipped with a new high-quality sound collection microphone manufactured by Knowles in the United States. You can send clearer audio to listeners on the other side of the screen, such as during telework, audio SNS, and live streaming on YouTube and Instagram. [Sound quality that Mr. Pierre Nakano is particular about] While maintaining the sound quality with extremely high resolution and fidelity, Mr. Pierre Nakano carefully analyzed the frequency and phase characteristics and carefully tuned it in 0.1 dB increments. There is no phase shift at high speed, a deep bass that seems to sink in, and a sweet and sexy midrange that will move the listener's heart, with the vocals being positioned smoothly in the center. The capabilities of the high-performance BA drivers are brought out to the fullest, and each of the three drivers' tonal ranges, including the dense, non-piercing high range, is perfectly tuned. [Newly developed high-performance low-noise isolation earpieces] By making a cut in the tip, you can enjoy the music while letting in just the right amount of external sound. Perfect for outdoor use where you want to hear environmental sounds, such as in areas with heavy traffic or roads at night, or when listening to music as background music while working. Includes 5 sizes from XS to XL. [Sound quality that Mr. Pierre Nakano is particular about] While maintaining the sound quality with extremely high resolution and fidelity, Mr. Pierre Nakano carefully analyzed the frequency and phase characteristics and carefully tuned it in 0.1 dB increments. There is no phase shift at high speed, a deep bass that sinks in, and a sweet and sexy midrange that will move the listener's heart, with the vocals being positioned smoothly in the center. The...