This is the Futaba FASSTPak-A with the R6008HS Receiver, NR-4J 600mAh Receiver Battery and four S3004 Servos. **Compatible only with Futaba 2.4GHz FASST radio systems.** **NOT compatible with the Futaba 6EX 2.4GHz systems.** FEATURES: Designed for modelers who want to use a single radio transmitter to fly several different model aircraft One year limited warranty INCLUDES: R6008HS 8-channel Receiver, FUTL7639 NR-4J Receiver Battery, FUTM1280 Four S3004 Ball Bearing Servos w/Futaba J Connector, FUTM0004 Four 0.82" (20.9mm) diameter Round Servo Horns Four 1.25" (31.8mm) diameter Six Point Horns One 1.53" (38.9mm) diameter Four Point Horns 9" (229mm) Servo Extension, FUTM3910 Switch Harness and Charge Cord, FUTM4370 Mounting screws, grommets and eyelets REQUIRES: Installing in aircraft SPECS: Receiver- Dimensions: 1.8 x 0.9 x 0.5" (45 x 22 x 13mm) Weight: 0.48oz (13.5g) Power Requirement: 4.8 or 6.0V battery or regulated output from ESC NR-4J Receiver Battery- Weight: 3.3oz (94g) Thickness: .56" (14mm) Length: 2.25" (57mm) mAh Rating: 600mAh Width: 1.97" (50mm) Volts: 4.8V Servos- Length: 1.6" (41mm) Width: .8" (20mm) Height: 1.4" (35mm) Weight: 1.3oz (37g) Torque: 44 oz-in at 4.8V 57 oz-in. at 6V Transit Speed: .23 sec/60° @ 4.8V .19 sec/60° @ 6V COMMENTS: FASSTPak systems for aircraft use are also available in the following configurations; FUTL1160 R616FFM Receiver, 3-S3114M Servos w/Micro Connector FUTL1162 R617FS Receiver, 3-S3114/ Servos w/Universal Connector FUTL1170 R617FS Receiver, 4-S3004 Servos w/Universal Connector cnh 6/1/09 ir/jxs