Warranty & Compatibility & Note: Worry-free 12 months warranty; Compatible with Motorola radios XPR 3000e, XPR 3000 series; Including XPR 3300e, XPR 3500e, XPR 3300, XPR 3500, XPR3300e, XPR3500e, XPR3300, XPR3500, XPR 3000e; This is not Intrinsically Safe earpiece, don't use it in hazardous areas; this is not water-proof earpiece, don't use it under humid environment and rainy day. Professional Acoustic Tube Module: Super quality TPU acoustic tube provide durability and flexibility; Ear-hook and elastic coil made by precise forming technology makes your wearing more comfortable; Acoustic tube joints made of anti-cracking & wear-resistant plastic bring reliability and prevent scratching; High performance micro speaker and acoustic tube ensure sound to be transmitted clearly even in loud environment; A variety of accessories meet different ear wearing choice. Clear Sound Transmission: With professional acoustic tube module, high quality micro speaker, noise reduction microphone, high purity copper wire cable and anti-Interference circuit design and our great assembly skills, this earpiece ensure sound to be received and transmitted clearly even in loud environment. Super Strength Cable Module: TPU (Thermoplastic polyurethane) cable bring super bending strength, abrasion resistance and scratch resistance; Cable internally reinforced by high tensile strength fiber and Kevlar fiber bring excellent tensile strength; Strain relief structure made of TPU rubber bring stronger bending strength and longer lifespan; This cable module is built for mission critical use. High Strength Precise Connector: With TPU (Thermoplastic polyurethane) rubber jacket, engineering Polycarbonate housing, internal hard core and gold-plated POGO-pin, assembled by precise soldering technology and molding technology, the connector of this earpiece is built for stable connectivity and excellent operating life. 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 Kevlar Fiber, High Strength & Durability
-High Quality 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

Dimension Specification:
-Dimension of Mic/PTT Housing: 1.38x0.78x0.51 inch (HxWxT)
-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:
XPR 3300e, XPR 3500e, XPR 3300, XPR 3500, XPR3300e, XPR3500e, XPR3300, XPR3500, XPR 3000e