Frequency range : 8 - 22,000 Hz
Impedance : 32 Ohm
Magnet type : Neodymium
Maximum power input : 50 mW
Sensitivity : 106 dB
Speaker diameter : 40 mm
Acoustic system : Closed
Diaphragm : PET
Call Management
-Answer/End Call
-Reject Call
-Last number redial
-Microphone mute
-Call on Hold
-Switch between call and music
-Volume control:Yes