It can also print directly from numerous types of memory cards, and can print wirelessly from infrared devices or Bluetooth devices, using an optional USB Bluetooth adapter. Its maximum print resolution is 9600 x 2400 dpi, and each ink droplet is 1 picoliter in size. The iP6700D uses four conventional ink colors and two high-intensity photo-calibre ones to enhance photo color value. It also has a fast print speed, producing 4" x 6" photos in about 45 seconds and 8" x 10" photos in 76 seconds. It uses USB 2.0 to connect to computers. Photos printed using Canon ink and paper have Canon's ChromaLife long-lasting qualities, and are fade-resistant.