Pre-Order
| Releasing February 2026
Firma 40A Brushless ESC 2-in-1 SLT Protocol Receiver with DSC
Spektrum -
Item No.
SPMXSBER1040G
$97.99
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Pre-Order
| Releasing February 2026
PowerGuard PowerKey Set (2)
Spektrum - SPMX-1137
SPMXSBER1040G
$4.99
This 2-in-1 Spektrum Speed Control and Receiver offers space-saving appeal. The unit features PowerGuard, which allows drivers and parents to set performance limits. Drivers can easily control vehicle output directly from the vehicle itself with no additional parts required. Compatible with 2S or 3S LiPo batteries, this 40A Brushless ESC/Receiver with DSC (Dynamic Stability Control) gives your small-scale vehicle the ultimate bashing experience. The firmware is tuned specifically for smaller-scale vehicles, ensuring you receive a finely developed piece of hardware that delivers maximum performance when needed.
(1) Firma 40A Brushless ESC 2-in-1 SLT Protocol Receiver with DSC
Speed Control and Receiver combined in one unit to save space
Compatible with Spektrum SLT surface transmitters
Spektrum DSC (Dynamic Stability Control) throttle management to keep you in control
PowerGuard: Two ways to bash. One way to dominate
Quick Links
Manuals & SupportARRMA WHAT IS POWERGUARD?! Video
POWERGUARD
PowerGuard gives you control of how wild you want the ride to be. Pick your flavor – run time or chaos.
ADRENALINE-MODE: Max run time. Max stamina. Keep sending it long after the rookies quit.
CHAOS-MODE: Plug in the PowerGuard PowerKey. Unlock 50+ MPH speed. Unleash pure chaos.
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