From the Esprit website:

ESC Hacker X-70 SB Pro
Manufacturer Hacker
Applications Airplane, Sailplane
Special Features X-Pro Link Programming
Cont/Max Amp 70/84A
Cells NiMH/NiCD 8-18 cells
Cells Li-poly 2-6 cells
Voltage 6-22V
Programming Fully Programmable
Type/Max BEC (A) Switching/3A
Max Servos/V 2-6 /5V
Dimensions 75mm x 28mm x 10mm
Weight 55g