Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: Gopro Hero4 Hero 4 Silver Edition 4k Action Camera Camcorder, 32gb Micro Sd Card, 3 Extra Batteries, Car Charger, Home Charger, Action Hand Stabelizer, Special Action Flash, Head Strap Mount and More
Product description: Capture your world in an all-new way with HERO4 Silver, the first-ever GoPro to feature a built-in touch display. Controlling the camera, playing back footage and adjusting settings is ultra convenient - just view, tap and swipe the screen. With 1080p60 and 720p120 video, and 12MP photos at a staggering 30 frames per second, HERO4 Silver combines powerful, pro-quality capture with the convenience of a touch display. (Memory card required and sold seperately)
Product feature: Built-In Touch Display: Frame your shots. Easily adjust settings. Play back videos and photos. Improved Camera Control: New dedicated button enables quick access to camera settings. Simplified menus make navigating settings easier than ever., Fast, Powerful Photo Capture: Captures high-quality 12MP photos at speeds of up to 30 fps., Built-In WiFi + Bluetooth: Delivers enhanced connectivity to the GoPro App, Smart Remote, Brand New
Product brand: 5AveCamera
Target attributes: Internal Storage Capacity
Answer: attribute: internal storage capacity
value: None
source: None