Warranty & Compatibility: Worry-free 18 months warranty; Compatible with Kenwood TK series radios and NX series radios with multi-pin audio connector; Including NX-200 NX-200G NX-210 NX-210G NX-300 NX-300G NX-3200 NX-3300 NX-3400 NX-410 NX-411 NX-5200 NX-5300 NX-5400 TK-2140 TK-2180 TK-3180 TK-5210 TK-5210G TK-5220 TK-5320 TK-5310 TK-5310G TK-5410 TK-290 TK-390 TK-380 TK-385 TK-480 TK-481and more | 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. | 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. | 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. | High Strength Connector: With TPU (Thermoplastic polyurethane) rubber jacket, internal hard core and gold-plated POGO-pin, and assembled by precise soldering technology and molding technology, the connector is built for stable connectivity and longer operating life.