Features:
● 6 DOF Self-stabilization and mixing control.
● FY91Q Module for stabilization and mixing control for multicopters; quads, Y6 and Hexa configuration.
● PID setting change via TTL-USB connection.
● Firmware upgradeable (latest firmware is 1.1)
● Expandable to Navigation Edition 

Specification:
● Input voltage : 4.0 to 6.0 Volts
● Current draw : 52mA (5V)
● Size : 55 x 33 x 20 mm (2.17 x 1.3 x .79 in)
● Weight (excluding wires) : 20g (71oz)
● Temperature range :-25°C~+70°C (-13°F~+150°F)
● Maximum rate of rotation : = 500 ° / ss.