Reason for selling: I bought them today and they didn't suit me. Key specifications and features of the earbuds: Noise Cancellation (ANC): Isolates ambient noise up to 42dB, with 4 AI-powered microphones for crystal-clear calls. Sound Quality: Equipped with 10mm drivers for pure sound and powerful bass. Battery: The earbuds last up to 10 hours on a single charge, and up to 45 hours total with the charging case. Water/Sweat Resistance: IP54 certified. Innovative Feature: The charging case is cleverly designed to act as a phone stand. Control: Supports the Soundcore app for customizing EQ and noise cancellation modes. Connectivity: Supports the latest Bluetooth 5.4 for faster and more stable connection.