Product Description Other Details Related Products Total Price: Add to Cart Please choose options for all selected products This Item: OTTO V1-10842 EF Johnson Series Adapter MSRP: $92.46 $62.93 (You save $29.53 ) Product Description OTTO V1-10842 EF Johnson Series Adapter This adapter is required to use with some EF JOHNSON 3.5mm threaded plug (MA) OTTO accessories Compatible with Viking VP 400, D41VP600, VP900 Ascend ES, 51SL, 51SL ES, 5100, 5100ES Other Details Connector MA