Size: 56517's P-56517 D-Shape earpiece is a 2-Wire headset for the Motorola CLS1410 and CLS1100 two-way radios, including the CLS, XTN, RDX, DTR, and AX series. CLS1110, CLS1410, DLR1020, DLR1060, XV1100, XV2100, XV2600, XU1100, XU2100, XU2600, DTR410, DTR550, DTR650, RDV2020, RDV2080d, RDV5100, RDU2020, RDU2080D, RDU4100, RDU4160D, RMU2040, RMU2080, RMU2080D, RMM2050, RMV2080, M-Series and AX Series. This headset features a swivel ear piece which allows you to use it on either ear for comfort, and a combined microphone and push-to-talk button, for easy and unobtrusive use of your two-way radio. This product is manufactured by, and is designed to match and replace the 56517, HKLN4599 and PMLN5001.