HKSUNKIN Behind-the-neck Style Headphone with BOOM mic PTT for KENWOOD TK-2202 TK-248 Baofeng UV5R WOUXUN KG-659 KG-699E Two way radio Special behind-the-neck design, very comfortable, cleary sound for talking and listening. Twin right angle: Ear 2.5mm stereo (top pin). Mic 3.5mm stereo (bottom pin). Spaced Between Two Pin: 8mm Good quality and durable.