Brand new, unopened Features: * Compact, the smallest and lightest type, fitting any ear. * Includes three sizes of ear tips, providing a comfortable fit for your ears. * The main unit is IPX4 water-resistant, allowing for use even in sudden weather changes. How to Use: * Simply take the earphones out of the charging case to pair the left and right sides, then pair them with your smartphone for easy operation. Communication Method: Bluetooth Ver. 5.0 Supported Profiles: A2DP, AVRCP, HFP, HSP, SPP Supported Codec: AAC/SBC Maximum Continuous Playback Time: Approximately 5 hours Maximum Continuous Talk Time: Approximately 5 hours Maximum Continuous Standby Time: Approximately 120 hours Charging Time: Approximately 1.5 hours (both earphones and case) * Varies depending on volume and communication distance with the device. Type: Sealed Driver Unit: 6mm Frequency Response: 20～20,000Hz Impedance: 32Ω Sound Pressure Sensitivity: 96db ± 3db/1KHz Waterproof Standard: IPX4 (Water Resistant) Earphone Battery: 40mA Charging Case Battery: 470mAh Charging Port: TYPE-C port Included Charging Cable: TYPE-C USB2.0 (30cm) Included Ear Tips: XS, S, M (M size pre-installed) Truly Wireless Earphones iPhone android Commuting to work/school