Charge two mobile devices on the go. Easy to install in existing 12V DC socket hole providing convenient access for charging mobile devices. Protective cap with tether keeps out dust and spray. Compatible with popular mobile devices. Cut out dimension: 1-1/8 diameter hole. Made with corrosion resistant materials which ensure a solid contact and low voltage drop. Fits in same mounting hole as a traditional 12 Volt outlet. Compatible with most mobile devices including Apple products. Protective dust cap with tether keeps dust and spray from shortening the life of the charger. Conformal coated circuit board to stand up to harsh environments. 2A Supply fuse is not included. Product quality is managed in a manner consistent with international standards. Quality products engineered for the harsh marine environment.