It is designed for use on stage， houses of worship， presenters， lecturers and other situations requiring minimum microphone with hand-free operation. 

Features: 
Metal flexible boom to allow you to adjust the direction and angle according to your need. 
Uni-Directional pickup design can effectively reduce the noise of the surrounding environment. 
Wireframe headset fits securely for active speakers and vocal performers 
Works with voice amplifier. 
Headset style microphone with 3.5mm male connection. 

Specifications: 
Polar Pattern: Uni-Directional 
Sensitivity:-53dB ± 1dB 
Frequency Response: 20-20KHz 
Output Resistance: ≤680Ω 
Working Power: DC 1.0V-10V 
SNR: ＞28dB 
Cable Length: Approx.95cm / 37.4in 
Plug Type: 3.5mm 
Item Weight: Approx.19g / 0.7oz 
Package Weight: Approx.20g / 0.7oz 
Package Size: Approx.20 * 17 * 2cm / 7.9 * 6.7 * 0.8in 

Package List: 
1 * Microphone