Motorola 3071129B01 S805 Headset In-Flight Cable Headset Adapter Motorola S805 Headset In-Flight Cable - Part # 3071129B01 2.5mm (male) to 3.5mm (male) Headset Adapter. This adapter has 2.5mm right angle plug on one end and a straight 3.5mm plug on the other Compatible with Motorola S805 Length: 43"