Warranty & Compatibility: Worry-free 18 months warranty; Compatible for Kenwood radios with 2-pin audio jack, including NX-220 NX-320 NX-240V NX-340 NX-420 NX-1200DV NX-1300DU NX-1202AV NX-1302AU NX-3220 NX-3320 NX-3420 NX-1200NV NX-1300NU NX-P1200AV NX-P1300AU NX-P1202AV NX-P1302AU NX-P1200NV NX-P1300NU; TH-D72A TH-D74A TH-K20A; TK-2170 TK-2312 TK-2360 TK-3130 TK-3131 TK-3160 TK-3170 TK-3173 TK-3230 TK-3312 TK-3360 TK-3400 TK3402 and 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 Precise Connector: With TPU (Thermoplastic polyurethane) rubber jacket, internal hard core and Nickel-plated brass plugs, assembled by precise soldering technology and molding technology, the connector of this speaker mic is built for stable connectivity and excellent operating life.