[Compatibility] This radio earpiece is compatible with Motorola XPR 6100, 6350, 6380, 6550, 6580, 6500, 6300, 7550, 7580, 7350, 7000e, 7550e, 7580e, 7350e, 7380e, APX 1000, 2000, 3000, 4000, 6000, 6000XE, 7000, 7000XE, 8000, and 8000XE models. [Clear Acoustic Coil Tube] This comfortable surveillance earpiece features a transparent coiled cord and rubber earbud for greater comfort during extended use. The in-ear design delivers clear audio directly into the ear, minimizing surrounding noise interference. A replacement earbud is included. [Large PTT] Dual-line design with a large PTT button for easy operation. High-sensitivity microphone ensures clear voice transmission, even in noisy environments. [Durability] The earpiece cable is constructed with environmentally friendly PU material, compliant with RoHS standards. Reinforced with high-strength Kevlar, it has been tested for temperature and tensile resistance to ensure long-lasting performance.