earphone Good quality and best price Type:Stereo headphone with Mic. Speaker Size:40mm Frequency range :18-20,000Hz Sensitivity:116dB ± 3dB ( at 1 KHz, 0.5 Vrms ) Impedance:32 Ω Cable length:≤2.2meters Jack: 3.5mm/2 Microphone (Sensitivity: -58dB ±2dB requency range :30-16,000Hz) earphone
