Galaxy S21 Battery Case Qi Wireless Charging Compatible, 7000mAh Extended Power Case Slim Protective Portable Charger Case Rechargeable for Phone Regular S21 5G -（6.2inch Black）Features:1.Built-in 7000mAh battery. Provides 160% extra battery life for your Phone Galaxy S21.2.No excessive bulk and compact design for portability, and fits easily in your hand or pocket.3.The case provides complete shock absorption, which can protect the phone from drops and bumps.4.Allows you to use Phone Pay and supports all the functions of NFC, without taking the battery case off.5.GREAT GIFT IDEA: Perfect for Christmas Day, Happy New Year's Gift, Thanksgiving Day, and birthday gift for family members and friends.How to use:1.Please fully charge the battery case before using the product. Just fully put your phone into the battery case.2.Press the power button for 3s, It will start charge your phone. Press the power button again, the case will stop charging.3.This battery case are NOT included Charging Cable ,when your battery case need charge, please use your original Charging Cable.Package Includes:*Phone Galaxy S21 Battery Case x 1*1 X User ManualProduct Specifications:Capacity: 7000mAhInput: USB-C DC 5V/1.8A (MAX) Wireless DC 5V/1A (MAX)Output: USB-C DC5V/1.5A (MAX)DOES NOT compatible with type-c headphones.DOES NOT support Data Sync/Phone Pay/Android Auto/CarPlay.DOES NOT support magnetic/High Voltage, Quick Charge adapters.Charging via cable/Wireless station:1.You can charge the S21 external battery case with phone via the original charging cable at the same time.2.And S21 phone charging case can be charged via the Qi wireless pad without take off the case.