This is the Futaba BLS272HV S-Bus Programmable High-Speed Servo.

FEATURES: Ideal for helicopters
          High voltage, may be used with 2S LiPo packs
          Dual ball bearings
          Water sealed
          One year limited warranty through Hobby Services beginning at date of
            purchase

INCLUDES: Futaba BLS272HV Servo 0.83" (21mm) Round Horn, 1.4" (35mm) Round Horn
            1.2" (32mm) Six Point Horn, 1.5" (39mm) Four Point Horn, Mounting
            Hardware and Instructions

SPECS:    Torque: 167 oz-in at 7.4V
          Speed: .08 at 7.4V
          Size: 1.6 x .8 x 1.5" (40 x 20 x 37mm)
          Weight: 2.12oz (60g)

                                                                   jxs 12/22/11
                                                                         ir/jxs