D561 is an excellent digital servo with good centering and provides extremely accurate control. It outputs strong torque and fast reaction speed when in use. D561 suits all kinds of micro-aircrafts for 3D flight,e.g. used as rudder/elevator servo on 3D EPP, as ailerons servos on F3P,or directly on small gliders on F3P, or directly helicopters. In RC field, this nano servo is believed to be a smart choice for 3D flying fun. 

SPEC:

Torque:  1.2kg.cm @4.8V
Torque:  1.3kg.cm @6.0V
Operating Speed(4.8V): 0.09sec/60°
Operating Speed(6.0V): 0.08sec/60°
Dead Band Width: ≤3us
Micro Coreless Motor
Gear Type:Metal Gears
Full AVCS Gyro DS mode compliant
Dimensions 21.3x11.6x22.8mm
Connector Wire Length: 250mm
Weight: 6g

    Micro planes have been gaining increasing popularity during the past several years. 3D fixed-wing and helicopter flying demands precise maneuverability, fast speed and impressive sensitivity but general analog servo can not provide satisfying performance, which limits the further development of this market.
Digital servos can produce consistent and precise torque over the entire servo travel and guarantee a safe and stable flight.
These servos are tailored for park flyers, micro gliders and micro electric helicopters. Digital servos can also display its advantage in the field of industrial automation which needs accurate and high speed control.

Features:
The Hi-Speed Digital Servo provides extremely accurate neutral position.
High fidelity MCU and excellent algorithm make it work smoothly and keep high frequency noise minimized.
The Digital Servo adopts Frequency Conversion Technology which makes servo remain cool under wild and long time 3D flight and power consumption is rather low. This advanced technology guarantees the durability of Gening Digital Servo. 
Extremely narrow dead band (≤ 3μs) realizes industry leading sensitivity.
Fall safe feature (Lost Signal Protection) --- The Digital Servo keeps its position and torque during occasional signal lost.
Full AVCS Gyro DS mode compliant
Light weight but perdurable structure will not affect the 3D maneuverability of your plane.
Standard parts set come with four servo horns and fixing screws for servo horn and mounting flange