Amazon.com: ERIPHA Shoulder Mic Speaker Compatible with Motorola XPR 3000 3000e 3300 3300e 3500 3500e Waterproof IP56 Two Way Radio Speaker Microphone with 3.5mm Jack (Blue) : Electronics
MOTOTRBO Motorola XPR3500 | CommUSA
Titan, PTT Speaker Mic for Motorola XPR 3300 XPR 3500 DP2400 Portable Radio