Specifications:

RS7008SB
Receiving Frequency: 2.4GHz FASSTest system
Power Requirement: 3.7 - 7.4V (voltage range 3.5 - 8.4V)
Current drain: 75mA
External voltage Range: 0 - 70V DC
Size:24.9 x 47.3 x 14.3mm
Weight:10.9g
Antenna Length: 5-3/4"

BLS272SV
Speed:0.08sec/60°(7.4V) 0.09sec/60°(6.6V)
Torque:12.0kgf/cm(7.4V)  11.2kgf/cm(6.6V)
Power Supply:4.8-7.4V
Dimention:40x20x36.8mm
Weight:60g

Includes:
RS7008SB FASSTest Receiver 14SG/18MZ/18SZ
BLS 272SV x5