Specifications:

Size: 50.5mm x 50.5mm x 12mm

Weight: 21 gram (Inc Piezo buzzer)

IC: Atmega644

PA Gyro/Acc: 6050MPU InvenSense Inc.

Auto-level: Yes

Input Voltage: 4.8-6.0V

AVR interface: standard 6 pin.

Signal from Receiver: 1520us (5 channels)

Signal to ESC: 1520us

Firmware Version: V1.19S1 PRO