The Aikon AK32 35A 4IN1 BLHeli32 comes with STM32F051 micro processor with latest BLHeli_32 firmware. It supports 6s input, comes with current sensor to monitor the current output. 

What makes the AK32 different?

• New BLHeli_32 code base
• Programmable PWM frequency of up to 48KHz
• Auto-timing for higher efficiency and reliability
• Voltage/Current limiting
• Adjustable “Brake on Stop” force
• Improve direction change in Bidirectional mode
• ESC Telemetry
• Configuring from FC using DShot commands

Specifications:

Battery: 2-6s
Constant Current: 35A
Burst Current: 45A
Size: 36*36mm
Firmware: BLHeli32
MCU: STM32 F051
Bootloader: Yes
Weight( with/wire): 16g
Signal wire length: 100mm
Battery wire length: 100mm