commountain Earpiece for Motorola Radios SL300 SL3500e TLK 100

Commountain Single Wire Surveillance Earpiece/Headset Kit Features: -Single Wire Surveillance kit with Quick-Disconnect Acoustic Tube -Surgical Grade UV Resistant Acoustic Tube, Comfortable & Durable -TPU cable Reinforced by Aramid Fiber, High Strength & Durability -High Performance Speaker & Microphone Enable Sound to Be Transmitted Clearly Even in Loud Environment -Rugged PTT/Mic with High Feedback PTT Switch&Stainless Steel Swivel Clothing Clip -Rugged Connector Built for Stable Connectivity & Reliability Dimension Specification: -Dimension of Mic/PTT Housing: 1.42x0.75 inch (HxW) -Cable Length Between Connector and Mic/PTT: approx. 32 inch (Standard Version), approx. 39.5 inch (Longer Version) -Cable Length Between Mic/PTT and Ear tip: approx 22 inch -Cable Diameter: 2.8mm, 2.5mm Speaker Electric Specification: -Type: Electret Speaker -Impedance: 90Ω±15% at 1.0KHz 1.0V -Rated Input Power: 0.01W -Sensitivity: 115dB±3dB -Frequency Response: 0Hz-12KHz Average SPL-10dB -Distortion: 10% Max at 1.0KHz/1.2mW Microphone Electric Specification: -Type: Condenser Microphone -Output Impedance: 2.4KΩ±10% -Sensitivity: -43dB±2dB (1V/Pa) -Frequency Range: 50Hz-10KHz -Directivity: Omni-Direcctional -Working Voltage: 2V (10V Max.) Compatible for Motorola MOTOTRBO Radios As Follow: SL300 SL3500e SL7550 SL7550e SL7580 SL7580e SL7590 SL7590e SLN 1000 TLK 100 TLK 110 (SL 300 SL 3500e SL 7550 SL 7550e SL 7580 SL 7580e SL 7590 SL 7590e SLN1000 TLK100 TLK110)