ZMMN6031A Motorola 3 Wire surveillance kit for use with Motorola MT1500 Portable Radio

3-Wire black Surveillance Kit discreet communications. For Motorola XTS 3000/5000 Motorola XTS 1500/2500, Motorola HT 1000/MTS2000 & Ef Johnson Series Radios. Features kevlar reinforced cable, premium microphone, quick disconnect clear acoustical tube, ear bud, Hirose connector and barrell style PTT. Ring Style PTT also available upon request. Fully compatible to Motorola ZMMN6031A.AUDIO LIMITERConforms with Occupational Safety and Health Administration (OSHA) regulations. Electronically limits audio to the users ear to a safe maximum of 90dB to prevent hearing damage. Kits also available with volume control to allow users to temporarily exceed 90dB when in louder environments. Most low cost kits far exceed safe audio levels, unknowinglycausing hearing damage.CABLINGSheathing: PolyurethaneCabling: Diameter 4.5mm, Earphone cable 3.0mmSPEAKERImpedance: 250 +-50 OhmsSPL: 97 +-3dBMICROPHONEType: Piezoelectric Accelerometer MicrophoneImpedance: 250 +- 50 OhmSensitivity: 97 +- 3dBMECHANI