long flaxible wire to extend the cable length
Sensitive PTT button
fits either left or right ear
sensitivity PTT

 

 

mic earphone with  PTT ZST-35 

  

 

 

PTT function Crisp, clear voice and sound quality Curliness wire to extend the cable length Ensure great privacy for callers Adjustable ear hook fits either left or right ear Environmental PU cable Sensitive PTT button Speaker: Impedance: 32 ohms ±15% Frequency response: 420Hz to 20Hz Sound pressure level: -102dB to 2dB Maximum power: 50mW Dimensions: 15mm Microphone: Impedance: 2.2k ohms Sensitivity: -54dB to 2dB Frequency responds: 100 to 160Hz Omnidirectional Operating voltage:1 to 10V Dimensions: 9.6mm Wire: YDiameter: 2.5mm