【Brand New, Unused】 I am selling this item, which has been kept unopened since purchase. 【Specifications】 Driver: φ6mm Dynamic Type Sensitivity: 93±3db Impedance: 16Ω Maximum Input: DC5V/500mA (Max) Built-in Microphone for Calls: Qualcomm cVc8.0 Noise Cancelling Battery Capacity: Earphone (per ear) 50mAh / Case 500mAh Maximum Talk Time: 6 hours Maximum Continuous Playback Time: 10 hours Earphone Body Charging Time: Approximately 1.5 hours Charging Port: USB Type C Waterproof Standard: IPX4 Bluetooth Version: 5.2 Bluetooth Multipairing: 4 devices Supported Codecs: AAC, SBC, Qualcomm aptX, Qualcomm aptX Adaptive Supported Profiles: A2DP, HFP, HSP, AVRCP