Features: --All-metal structure、 small、 delicate、 special surface treatment process、 smooth texture and durable. --Compact、 solid metal collar clip、 easy to use not to hurt the clothing. --The cable is equipped with tensile、 bending. --Microphone core using the latest technology、 greatly enhanced reception range. --Noise control is good、 offer you the feel of quiet. --Suit for Desktop、 Laptop、 MP3、 MP4、 loudspeaker and other camera recorder.   Specifications: Directivity: Omni-directional Frequency Range: 20-20KHz Impedance: 480KΩ Sensitivity: -47dB±3dB Plug type : stereo φ3.5mm Color: Black Cable length: 2.4M Mic diameter: 6.0*5.0 mm   Receive Range: Powerful receive <30cm  Clear receive <1meter Normally receive <3meter   Packaged Included: 1 x Lapel Lavalier Mic Microphone