1. Using 32-Bit STM32F051 Microprocessor, With F3-F7 Flight Controller Up To 32K Refresh Rate, Bringing A And Accurate Sense Of Control 2. Continuous Current 45A, 2-5S. BLHE-32 Firmware. Support Shot1200 Adaptive Timing Function, Which Can Automatically Adapt To Most Motors On The Market 3. The Esc Is Extremely Small And Light, And The Body Is Lighter 4. -Through Machine Formula 45A BLHELI32 Four-Axis Racing Violence 2 5S Brushless High-Speed Esc 5. Professional Installation Is Required To Avoid Damage Continuous Working Current: 45A Instantaneous Current: 55A Applicable Lithium Battery Cells: 2S-5S MCU:STM32F051 Colour:As Shown Material:plastic Size:1.36 x 2.76cm Package Contents: 1 x ESC 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.