Front: 138 x 65 mm.
Back: 138 x 65 mm.
charging instructions: LED display lamp
The Capacity is 6000Mah
Mobile power conversion efficiency :92%
protection function: short circuit protection / overcharge protection / over discharge protection
From and above Iphone 8 and Samsung S6 , S7 Edge, S8, S8 +, Note 8 versions can charge without receiver. For other Phone brands it depends on the technical details of the phone if it needs the receiver or not.