iPhone 7 Plus Battery Case, Alpatronix BX180plus (5.5-inch) 5000mAh Slim Rechargeable Protective Portable Charging Case for iPhone 7+ Plus Juice Bank Power Pack [Apple Certified Chip, iOS 10+] – Black for $29.97 w/ Promo Code: FJBTLFMT. Prime Shipping available.
Also compatible with the iPhone 6 Plus and iPhone 6S Plus (cannot use wired headphones, only Bluetooth headphones) for data transfer, syncing and charging
https://www.amazon.com/Alpatronix…tt