A Privacy Tempered Glass screen protector for iPhone 7+/8+ typically offers 2-way privacy, meaning the screen is only visible to those directly in front of it, and it's made of tempered glass with a 9H hardness rating for scratch resistance. It's designed to be case-friendly and may be ultra-thin for optimal touch sensitivity. 
Key Specs and Features:
Privacy Protection: The primary function is to limit the viewing angle of the screen, preventing others from seeing sensitive information when viewed from the side. 
Tempered Glass: Provides a high level of scratch and impact resistance. 
9H Hardness: Refers to the hardness level of the tempered glass, indicating its ability to resist scratches. 
2.5D Rounded Edges: The edges of the screen protector are rounded to prevent cuts and provide a smoother feel. 
Anti-Spy/Anti-Scratch: Combines privacy features with resistance to scratches and fingerprints. 
Case Friendly: Designed to be compatible with most phone cases without interfering with the screen protector's fit. 
Installation: Typically comes with cleaning wipes and dust removal stickers for easy installation. 
Touch Sensitivity: The ultra-thin design aims to maintain the phone's touch sensitivity. 
Clarity: Offers high clarity from the front view, with visibility gradually reducing at wider angles. 
Shatter-Proof: Made of tempered glass, it's designed to shatter into smaller pieces rather than sharp shards upon impact.