TRN BT30 Pro (Bluetooth Earhook) [Purchase Date]: Around July 2025 [Condition]: Used about 10 times. While no major scratches are visible, there may be minor signs of use from daily handling. [Operation]: Pairing, charging, and simultaneous left/right playback have been confirmed. ※ An Amazon sticker is affixed to the box, but it has not been peeled off. There are traces of an attempt to peel it off, but there is no damage to the outer box. ■ Main Specifications (Official) ・Bluetooth 5.2 / Qualcomm QCC3040 ・Codecs: aptX / AAC / SBC ・Built-in independent amplifier (MAX97220A, >42mW at 16Ω) ・Charging case 1200mAh (supports wireless charging) ・Playback time: Approximately 13 hours maximum on its own, approximately 50 hours maximum with the case (official) ※ Actual usage time varies depending on the environment and volume. ※ iPhones connect via AAC because they do not support aptX. ■ Included Items ・BT30 Pro body (left and right set) ・Charging case ・Connectors: 3 types [MMCX / 2pin / QDC] ・USB-C cable ・Original box / Instruction manual