Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: Brando Workshop Premium Tempered Glass Protector (Rounded Edition) for Google Nexus 7 (2013)
Product description: Brando Workshop Rounded Glass Screen Protector is a superb screen protector which provides extremely high protection for your LCD. Featured rounded edges not only lessens the chance of side cracking but also gives a smoother touch. With the extremely thin and rounded edges feature, it offers the LCD screen a (nude) yet durable protection. Tempered glass protects LCD from scratches, shock or any kind of damages while maintaining touch screen's sensitivity. It is extremely easy to install, no residue if removed. The ultimate screen protector for your LCD! Features: Super Slim : Specially processed and chemically treated. Rounded Edges : Smoothing touch. Less chance of edge cracking. Surface Hardness 8-9H : Tempered glass which can protect the screen from scratches from knives and keys, offering superior durability and scratch prevention. Oleophobic Coating : Resist fingerprint and smudges. Easy to clean. Delicate Touch : Strong silicone adhesive feature allows easy installation and firm attachment while not affecting the sensitivity of the screen. Great touch sensitivity. No sticky residue if removed. Anti-Shatter Glass: Helps prevent glass fragmentation, protects user from injury when glass is broken. Package Contents: One Piece Real Tempered Glass One Piece Microfiber Cleaning Fabric Two Pieces Dust Remover
Product feature: Compatible Models: Google Nexus 7 (2013) ; Google Nexus 7 (2013) Asus HD ;Asus Google Nexus 7 2
Product brand: Brando
Target attributes: Device Type
Answer: attribute: device type
value: None
source: None