NILLKIN Amplifier Case TPU PC Combo Phone Case for iPhone 7 Plus with Built-in Iron Sheet

NILLKIN Amplifier Case TPU PC Combo Phone Case for iPhone 7 Plus with Built-in Iron Sheet - Black There are nine tracks for sound redirecting on the top and two sides inside this case, which make it amplify and equalize your phone's sound range for fuller, richer sound. Built-in light and thick iron sheet allows it to be attached to magnetic car holder for hands-free viewing. Made of TPU and plastic materials, it provides excellent protections to your phone from any accidental drops or bumps. It is truly a wonderful case with simple style, multi-function, moderate weight, good texture, tough protection and good touch feeling.Creative amplifier case, no extra Bluetooth connection or loudspeaker requiredBuilt-in iron sheet, it can be used with magnetic car holders (not included)Shock absorption design to offer best protectionAnti-slip on both sides for firm holdingOpen mold by original phone for unhindered operation