Disposable headsets ,popular use in fitness centers, hospital, gums ,museum tours ,etc .

1. Driver Unit: :φ30mm Speaker    

2. Impedance: 32 ohm/300 ohm(optional) 

3. Sensitivity:109+/-3dB at 1000HZ 

4. Rated Power: 40mW 

5.Maximum Power:100mW

6.Cable Length: APPRX.1.2M

7. Cable Diameter: 2.2mm

8.Frequency Range: 20-20,000Hz

9.Plug:3.5mm stereo pin(single,double,folding pin is available)