Walnut Original Compatible with iPhone 6 and iPhones 5S/5/5C. Check out www.koostik.com for an Original designed for the new Apple iPhone 6 Plus! Made by hand in America Energy free amplification of 2-4 times the volume of your iPhones speaker Solid Walnut Compatible with iPhones without case and iPhones with cases up to 2.5 wide x 0.5 deep