BT Chipset Type: BLUETRUM 5756T3 Pairing Name (Model): S60 Bluetooth Version (BT Version): Bluetooth V5.49 Supported Bluetooth Profiles (B/T Profile): L2CAP, A2DP, AVCTP, AVDTP, AVRCP Prompt Tone: Available in Chinese and English (default: Chinese) Main Body Material/Surface Treatment (Case Material/Surface): ABS with vacuum plating / original material (raw color) Supported Functions (Detailed): High-definition dual-mic calling, Bluetooth music playback, long battery life Transmission Range: ≥15 meters (barrier-free environment) Speaker Specification (Speaker Spec.): 13MM driver, 32Ω impedance Charging Port (Charger Port): TYPE-C Charging Voltage/Current/Time (Charge V/Current/Time): 5V voltage, 250mAh current, 2 hours charging duration Charging Case Battery Model/Capacity: Model 601230, 200mAh capacity Headphone Battery Model/Capacity (Batt. Model/Capacity): Model 401010, 30mAh capacity Music Playback Time (At 80% Volume): Approximately 4 hours (when played at 80% volume)