UiiSii U8 Hi-Fi Universal Headset with Microphone / Remote / 3.5mm / Red

U8 Dynamic Driver Surround Deep Bass In-ear EarphonesPU Back Cavity Design, Powerful Bass, Environmental TPE Cable, Full Compatibility, Comfortable Fit. Frequency range: 20 - 22000 HzResistance: 16 ΩSound Sensitivity: 102 dB