This is the 72MHz Futaba R168DF 8-Channel FM Receiver without Crystal.

FEATURES: Strong interference free reception for all 4+ channel Futaba FM
systems
Narrow band spacing and Dual Conversion signal filtering
Accepts High or Low band crystals
One year limited warranty

INCLUDES: 72MHz (ch 11-60) Futaba R168DF 8-Channel FM Receiver

REQUIRES: One 72MHz Receiver Crystal, (ch 11-35) FUTL57** Low Band,
OR (ch 36-60) FUTL58** High band

SPECS:    Dimensions: 1.1 x 2.2 x 0.8" (28.5 x 55.5 x 19.8mm)
Weight: 1.0oz (28g)