1) Multi-functional button: Answer/End calls, NEXT/ PREV, VOL +/- 2) Speaker size: 13.5mm 3) Port: Lightning port 4) Frequency: 20Hz-20 KHz 5) Sensitivity: 100dB±3dB 6) Impedance: 32?±15% 7) Color: White 8) Cable length: 120±5cm 9) Package dimension: 5.9*5.9*1.58 inches