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.