Cheap And Discounts New Duplex Repeater Interface Cable For Motorola Radio CDM750/M1225/CM300/GM300 Dual Relay Interface Talkthrough Repeater Cables Wholesale. Buy Directly From Merchant Shop1104085167 Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.