Bluetooth 2.1+EDR, Integrated 802.11abgn. OS X 10.13 High Sierra. Please do not return any items without an authorization number or other instructions by us.Any packages that are send without our knowledge will be refused and no replacements will be issued. ALL PRODUCTS ARE MARKED WITH SERIAL NUMBER AND QC BADGE. Please allow up to 48 hours for us to respond. Sometimes Spam filters prevent emails from being properly delivered. No one is EVER ignored! The item "Apple MacBook Pro 13 A1278 MC374LL/A Mid 2010 Core 2 Duo 2.4GHz 4GB 250GB B" is in sale since Wednesday, October 24, 2018. This item is in the category "Computers/Tablets & Networking\Laptops & Netbooks\Apple Laptops". The seller is "jkcomputerparts" and is located in Wickliffe, Ohio. This item can be shipped to United States.