This is the Futaba R616FFM 2.4GHz FASST 6-Channel Receiver. It is compatible with the following FASST transmitters: 6EX; 7C; and the following transmitter modules; TM7,TM8, (on 7 channel mode), TM10 (on 7 channel mode) and TM14 (on 7 channel mode).

Designed for use with park flyers or indoor aircraft
Compatible with micro connectors only
Easy one touch linking to transmitter
One year limited warranty

Dimensions: 1.5 x 0.9 x 0.3" (38 x 22 x 7mm)
Weight: 0.22oz (6.3g) with case
0.14oz (4.0g) without case
Power Requirement: 4.8V- 6.0V battery or regulated output from ESC
F/S and Battery F/S function (for channel three)
Battery F/S Voltage: 3.8V
Current Drain: 75mA (w/no servos) with or without signal.
Approximate range of 1000 ft.