KENMAX 2 Pin Heavy Duty Handheld Lapel Ruggedized Microphone Speaker Mic with 3.5 mm Jack for Motorola CLS1413 CP125 CP140 SU210 SU22 MV21C GP2000 High quality and humanization design;Space of two-pin 11mm 3.5 mm jack for external listen-only earpiece earphone. This speaker makes you don't need to carry your radio when you are talking and listening. You can use your radio easily and quickly since push-to-talk button and microphone are located on the accessory. A strong swivel retaining clip on the back for convenience. Heavy duty and Compact Design.