・Anker wireless earbuds, Soundcore Liberty Neo 2. 【Product Description】 ・Popular model further evolved: While maintaining the compact design of the popular "Soundcore Liberty Neo" model, it now supports the Soundcore app, allowing for free customization of the equalizer from high to low frequencies. Furthermore, the functionality has been significantly upgraded, including a maximum playback time of up to 40 hours (when using the charging case), which is about twice that of the previous model, and wireless charging support. ・Enhanced powerful sound: The 8mm driver with a three-layer structure, which is larger than the previous model, enhances the output of both high and low frequencies. This achieves a powerful sound. ・Easy customization with the app: By using the Soundcore app, you can easily customize the equalizer settings and touch operations of the earphones. ・Up to 40 hours of long playback: The earphones themselves can play for up to 10 hours on a full charge, and when used with the included charging case, you can listen to music for up to 40 hours. Also, it supports wireless charging, and you can charge the case by simply placing it on a wireless charger. (Wireless charger sold separately) ・There is normal wear and tear, but there have been no drops and no noticeable scratches. ・As far as I have confirmed, there were no problems with connecting to a PC and smartphone, as well as charging. ・All accessories are included, such as the box, charging case, charging cable, and ear tips & wings. Only the M size ear tips & wings have been used.