Tested and working. AVIOT Wireless Earphones Pierre Nakano Collaboration Model TE-BD21j-ltdpnk Only the items shown in the photos are included. Ear tips (some) and a pouch are not included. [Piyahon 5: Fully supervised by Mr. Pierre Nakano, from sound quality to design] Mr. Pierre Nakano, who has exceptional hearing and tuning skills, has conducted thorough tuning in 0.1dB order. He fully supervises the design, including the original dark bronze color for the complete wireless earphones. [Mr. Pierre Nakano's "Keyword is 'Bass'"] "Compared to previous collaboration models, the resolution has improved dramatically. It's amazing, to the point of being shocking. The keyword for the 5th Piyahon is 'bass'. However, it doesn't have excessive bass, and the mid-to-high range is also well-balanced, while still maintaining the essence of Pierre Nakano tuning. I don't think you can hear this bass with other earphones. I'm extremely confident in this product. I want everyone to listen to it." [Dedicated app for voice guidance switching] Compatible with the dedicated app "AVIOT PNK CHANGER" for voice guidance switching. You can select and switch the voice guidance that informs you of the connection status with the device, etc., from the initial setting of "PSYCHO-PASS" Akane Tsunemori (CV. Kana Hanazawa) voice and Dominator (CV. Noriko Hidaka) voice. Through the collaboration with the voices of the luxurious voice actors, you can experience the world more deeply and enjoy a luxurious listening experience. [Adopting the next-generation platform "Snapdragon SoundTM" that supports Hi-Res] Not only does it achieve the highest level of sound quality in wireless audio, but it also dramatically improves call quality. In addition, by reducing the overall system delay, it has also improved compatibility with games, etc. In combination with Android devices that support Snapdragon SoundTM, it is possible to play music in Hi-Res quality (96kHz / 24bit), eliminating the hardness and unnaturalness unique to digital sound sources.