Brand: Koss. MPN: KSS196982102. in-line microphone and remote that controls play/pause, start/stop, volume, answer/end, etc.   Frequency response: 10 Hz to 20 kHz   Bluetooth v4.2 for audio streaming and hands-free phone calls   Accurate high-fidelity sound with memory foam cushions for superior comfort and noise isolation   Sweat-resistant