This is the Hitec 3 Channel FM 75MHz Single Conversion Receiver.

FEATURES: Works with Hitec and Futaba transmitters
          75MHz negative shift
          Single conversion, narrow band
          One year limited warranty

INCLUDES: One Hitec 3 Channel FM Micro Receiver

REQUIRES: Futaba or Hitec 75MHz Transmitter
          Single conversion 75MHz crystal, HRCL29**
          4.8V receiver battery

SPECS:    Length: 1.4"   (37mm)
          Width:  0.98"  (25mm)
          Height: 0.71"  (18mm)
          Weight  0.53oz (15g) without crystal