ITEM NAME:Mini Wired 3.5mm Jack Collar Lapel Clip-on Teaching Speech Guide Microphone A#S Product Description Description: Wired 3.5mm Jack Collar Clip Microphone for Teaching Speech Guide Loudspeaker Mini Portable Wired 3.5mm Clip Microphone for Teaching Speech Guide Loudspeaker Features: Suitable for teaching loudspeaker, V band wireless microphone, U band wireless microphone and PC microphone. Plug on the microphone port of speaker or notebook PC. Clear sound recording. Flexible holder arm. Mini size, lightweight, easy to carry. Specification: Connector: 3.5mm audio plug (elbow) Mic Size: 6x5mm Sensitivity: -52dB ±3dB Directivity: Omni Impedance: ≠¤2.2kÃŽ © Work Voltage: DC 2V Frequency Response: 100Hz-16KHz SNR: >60dB Wire Length: approx. 1.16 m/3.81 ft Included: 1 X Microphone.Mini Portable Wired 3.5mm Clip Microphone for Teaching Speech Guide Loudspeaker. Suitable for teaching loudspeaker, V band wireless microphone, U band wireless microphone and PC microphone. Plug on the microphone port of speaker or notebook PC.