Item name: hood bracket/fixed seat Process of bracket: 3D printed Weight: about 8.9g(including 1pcs 1.4g buzzer) Buzzer sound: above 80 decibels Used for Pavo20 Pro racing drone with for O4 air unit. This bracket is made of high-quality material. Its well-designed layout perfectly eliminates the jelly effect caused by flight vibrations and is equipped with an additional buzzer socket. It features good heat dissipation both at the top and bottom, and the four screw holes at the bottom a secure fit. The buzzer produces a sound of over 80 decibels, making it easier to locate the aircraft during flight.Solve the problem that drones have weak outdoor sound and are easy to get lost. Note: The drone model and others in picture shown not include. Try to keep for the O4 camera cable from touching the top of the bracket to avoid resonance. The screws of the camera must be tightened securely. Color: Black Material: TPU Package Contents: 1 * Drone Headgear Mount Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.