Integrated Bluetooth Feature: This F405 mini flight controller board is equipped with an integrated Bluetooth module that allows for seamless and wireless tuning. Connect your smartphone or tablet to easily configure your drone and optimize its performance without the need for wires or connectors. Powerful and Versatile Performance: With a built-in 35A 4-in-1 ESC board, the flight controller supports 3-6S input voltage, ensuring maximum flight performance. It also offers added flexibility and comes with adjustable voltage levels for and more efficient drone operation. Compact Design for Better Efficiency: Boasting a 20x20mm design, this and compact flight controller easily fits into your drone without adding excessive weight or bulk. This makes it an excellent choice for enhancing the flight dynamics of your drone while maintaining its maneuverability and speed. Easy-to-Install and : Designed with a plug-and-play interface, our drone flight controller ensures an easy and swift installation. Plus, it is made of high-quality materials, ensuring maximum durability and a longer lifespan even in the most demanding flying conditions. Outstanding Support and Compatibility: Our F405 mini flight controller stack board is the perfect upgrade for your RC drone. It offers compatibility with several drone models, making this an perfect choice for both hobbyist and professional drone pilots. Note:Due to different production batches, the appearance is different, which does not affect the use. Colour:Black Material:Metal Package Contents: 1 x Drone Stack Kit 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.