Great device for the money and is compatible with models:

iPad 6, 7, 8, 9 & 10th Generation

iPad Mini 5 & 6th Generation 

iPad Air 3, 4 & 5th Generation 

iPad Pro 3, 4, 5 & 6th Generation 

Features:
*Standby time: 60H
*Charging time: 2H
*Battery capacity: 130 Mah