SPECIFICATIONS: Microphone: Yes, Wireless Type: Bluetooth, Waterproof: Yes, Volume Control: Yes, Vocalism Principle: Dynamic, Total Harmonic Distortion: 5%, Memory Card Support: No, App Support: No, Style: In-ear, Sensitivity: 96dB, Resistance: 32Ω, Plug Type: Line Type, Package List: Charging Cable, No. of Drivers: 2, Material: Plastic, Magnet Type: Other, Line Length: 0m, Wireless: Yes, Impedance Range: 33-100 Ω, Headphone Pad Material: Other, Function: Sport, Frequency Response: 20-20000Hz, Earcup Type: Semi-open, Driver Diameter: 13mm, Control Buttons: No, Connectors: Type C, Communication: Wireless, Codecs: AAC, Charging Method: Charging Case, Certification: FCC, Category: Earphones & Headphones, Brand Name: Lenovo,