MaximalPower 3.5mm RECEIVER/LISTEN ONLY surveillance headset earpiece with clear coil tube earbud audio kit for two-way radios, transceivers and radio speaker mics jacks fits standard two-way radios transceivers and radio speaker mics for such as MOTOROLA, KENWOOD, ICOM, ADI, ALINCO, and YAESU. This earpiece also works with MP3 players, remote mics and other audio devices or accessories with 3.5mm earphone jack connector. This surveillance headset is rugged design, polyurethane jacketed and made with heavy duty material with superb audio quality. The reinforced earphone clip provides cable retention and eliminates strain on earphone. It is 100% compatible with all original equipment manufacturer (OEM) parts and ideal for high noise level environments and discrete listening. FEATURES: Output Level: 72Db, Rated Input Power: 0.1W, Maximum Input Power: 0.2W, Output Impedance: 32 ohms. Works with the following devices: Any MOTOROLA / KENWOOD (KMC-25 KMC-26) / ICOM radio, remote mic, and speak mic with a 3.5mm earphone jack.