Additional Details ------------------------------ Product description: The Pryme SPM-100 OBSERVER is a lightweight, compact remote speaker microphone designed for use in light-duty applications. The Observer microphone features a high-quality microphone element that produces excellent transmit audio. The SPM-100 is meant to be worn on the user's lapel, duty belt, or shoulder strap. Includes a large, metal-reinforced clip which rotates 360 degrees. The SPM-100 features a powerful built-in speaker that delivers loud receive audio. The SPM-100 series includes a 3.5mm earphone jack for listen only use. Compatible with the following: Motorola BPR40, CP100, CP125, CP150, CP185, CP200, CT150, CT250, CT450, CT450LS, CLS1110, CLS1410, DTR Series, GP350 (requires a Motorola HLN9482 adaptor), GP68, GP88, GP280, GP300, GP308, GP2000, GTI, GTX, LTS2000, P040, P080, P110, P1225, P1225LS, PR400, PRO3150, SP10, SP21, SP50, XTN446, XTN500, XTN600, XV1100, XV2100, XU1100, XU2100, XU2600, VL130, VL50, Blackbox, Blackbox+, Relm RP6500, HYT TC500, TC600, TC610, TC700, TC700EX, TC508, TC580, Tekk XU100, XV100, XU1000, XV1000, X500V, X500U, RDV5100, RDV2020, RDU2020, RDU2080D, RDU4100, RDU4160D, RMU2040, RMU2080, RMU2080d, RMV2080