Key Features Stereo Headset with MIC With 3.5mm, 4poles connector for phone and computer With detachable USB cable for computer, plug to use With MIC mute, SPK mute, Volume+ / Volume- function Omni MIC, 38+/-3dB
Key Features Mono Bluetooth Headset with MIC Rotatable and flexible MIC boom (±135° ) 30mm, 32ohms high quality speaker, With MIC mute button
