1. AV-JEFE AVL506D Karaoke & All Purpose Microphone

AVL506D is a unidirectional microphone designed to suit for a wide variety of applications. Its cardioid pickup pattern controls feedback and minimizes background noise from other sound sources. It also features a built-in On/Off switch to give more convenient control of the microphone.
               

                  

3. AV-JEFE PHM914 Professional Installed Microphone

Specifications:

• Element: Back Electret Condenser
• Polar Pattern: Omnidirectional
• Frequency: 20 Hz ~ 18,000Hz
• Impedance: 250 O ± 30% (@ 1KHz)
• Operating Volt: 9~52V DC ; Phantom Power w/ built-in circuitry
• Sensitivity: -63 dB ± 3 dB ( 0 dB=1V/ microbar 1,000 Hz indicated by open circuit )
• Dimension: Head  Ø28 x 3 mm (Ø25 &  Total long: 73mm)

                

4. AV-JEFE PHM916 Professional Installed Microphone