In their own words

PRINTS MADE PICTURE PERFECT – Get beautiful, colorful 3.5” x 4.25” photos with Zink ZERO-INK technology. Instantly print high-quality photos on waterproof, smudge-proof, and sticky-backed Zink paper with no ink or toner needed. PRINT LIKE THE WIND – Connect your iOS or Android via Bluetooth and print your favorite photos instantly. With wireless printing, you can quickly print amazing pictures right from your smartphone. HP Sprocket 3x4 even supports multiple users at once. PERSONALIZE YOUR PICS – Download the HP Sprocket app and customize your photos before you print. Use the simple photo-editing app on your phone to enhance your pictures. Add stickers, borders, filters, and other stunning effects to turn your photo into true art. PREMIUM TRAVEL-SIZED PRINTING – Compact, lightweight design fits in your bag or backpack without issue. Easily take this portable printer on all your photo-taking adventures. Print out unique, vibrant pictures during your travels with this handheld device.