This is the DSMX Flybarless Control System by Spektrum.

Features:

• Integrated DSMX Receiver
• BEASTX 6-axis MEMS Flybarless Stabilization System
• Compatible with DSM2 and DSMX transmitters with Heli Programming
• Compact and Lightweight
• Easy to set up and adjust
• Data and Telemetry Capable
• All Scale Flybarless Helicopters (Multi-Blade Compatible)
• Optional SAFE Software sold separately

Tech Specs:
# of Channels: 6-9
Modulation: DSM2/DSMX
Band: 2.4GHz
Length: 1.42 (36mm)
Width: 1.1 (28mm)
Height: 0.51 (13mm)
Weight: 0.66oz (18.6g)
Voltage Range: 3.5-8.5V
Antenna Length: 4.33/1.57in (110/40mm)