1.Warranty & Compatibility: Worry- 18 months warranty; Compatible with Motorola Radios XPR 3300, XPR 3500, XPR 3300e, XPR 3500e (XPR3300, XPR3500, XPR3300e, XPR3500e) 2.Rugged Construction: With high impact-resistant engineering Polycarbonate plastic housing, SMT electronic board, internal vibration absorption system, stainless steel detachable 360-degree rotatable heavy duty clip, combined with precise molding technology, this speaker microphone is built for tough mission critical use and is built to withstand knocks and bumps. 3.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 stronger tensile strength; Strain relief structure made of TPU rubber bring stronger bending strength and longer lifespan. 4.Clear sound transmission: With high quality micro speaker, noise cancellation microphone, high purity copper wire and anti-Interference circuit design, this speaker microphone ensure sound to be received and transmitted clearly even in loud environment.