Product Line: Ear Bud Hands Free Product Name: EP-27 Earbud Hands Free Specifications: SPEAKER: Frequency Response:20~20000Hz. Sensitivity: 105+/-3dB. Impedance:32(ohm)+/-15% at 1kHz. Max Input:10mw MICROPHONE: Frequency Response:50~20000Hz. Sensitivity:-58+/-2dB F=1kHz P=1Pa Rated:DC4.5V Min Operation Voltage:DC1.0V Description: In-Line-Volume, On/Off, Switch Button, can be made to your technical and color description. Character: Clear Sound, Convenient Carry |