This is the Traxxas TSM Stability Management 2.4Ghz 4-Channel Receiver. Traxxas Stability Management (TSM) allows you to experience all the extreme power, speed, and acceleration that was engineered into your Traxxas model by making it much easier to control the vehicle on common slippery surfaces such as loose dirt, smooth concrete, and even ice and snow. Punch it off the line and TSM goes to work sensing the vehicle’s direction and making steering corrections to provide straight-ahead full-throttle acceleration without fishtailing, spinouts, and loss of control. TSM also works during cornering, first making intuitive corrections to maintain your line, and then allowing you to hammer the throttle earlier in the turn for much faster exit speeds. Braking is dramatically improved as TSM works to keep you arrow straight until you come to a complete stop. 

Traxxas TSM gives you all the benefits modern electronic stabilization has to offer without intruding on your driving fun or introducing unexpected side effects that can be found on other systems such as drastically reduced turning radius, braking assistance that times out (quits), throttle restrictions, and an overall disconnected driving feel. Traxxas engineers developed superior tuning algorithms that run on high-speed, precision electronic components to create a system that works invisibly, in the background, without ever limiting your throttle. TSM can be fine tuned (or turned off) for different surfaces by simply adjusting the multi-function knob on the TQi transmitter, or by adjusting the slider in the Traxxas link app. The result is that you are driving faster, with more ease, and having more fun. In fact, you may not even realize how much TSM is helping you until you turn it off and test your driving skills without it! 

How does it Work? 
TSM lives in the receiver of the model. The TQi TSM receiver (TRA6533), works with TQi transmitters equipped with a Multi Function knob. The Multi Function knob adjusts the amount of assistance provided by TSM. More assistance tightens the control, virtually eliminating fishtailing and sliding. Less assistance allows the vehicle to be more loose for controlled power slides and “steering” with the throttle. TSM never restricts throttle input. The driver always has complete control of the power. TSM can easily be turned off by simply turning the multi-function knob counterclockwise to its stop. TSM can also be adjusted in the Traxxas Link application. The control icon is in the “Garage” in Traxxas Link and also the Drive Effects screen. Each model has a specific software load, custom tuned to the model. Traxxas Link remembers TSM setting when the driver uses the same transmitter and switches between various models equipped with TSM. 

Ready-To-Race Simplicity 
Out of the box, TSM does not require any additional setup or configuration for the driver. It goes to work as soon as the vehicle is turned on. TSM should be turned off while adjusting the steering trim from the TQi transmitter. 
Have extra tires on hand! 

While the mission at Traxxas is to build our vehicles tough to resist breakage and wear, if you like to pull the throttle trigger hard and often, expect some increased tire wire. Normally, without TSM, it can be difficult to hold full throttle for extended lengths of time, particularly when the vehicle is configured with brushless power and 3S LiPo batteries. Drivers naturally tend to back off the throttle to maintain control, which reduces tire wear. However, TSM opens the door for full throttle acceleration on practically any surface and simply-put, if you like to lay down the rubber, the tires don’t stand a chance. Keep an extra set handy, particularly if you’re driving on asphalt and concrete. Watch for new replacement tire packages from Traxxas to carry the TSM Rated decal which means they are specially prepared for excessive throttle usage! 

Installation on other Traxxas models 
When installing TSM into Traxxas models, it requires a Traxxas TQi radio system with the Multi Function knob. Connectivity to the Traxxas Link App (iOS or Android version) is also required in order to update the receiver firmware with a TSM profile for the specific model. Depending on the radio system, it may be necessary to purchase the TQi Traxxas Link Wireless Module to connect to a smart phone via Bluetooth. For TQ radio system, then consider Powering Up to the TQi radio system to have access to the full feature set, Traxxas long-range performance, telemetry, and Traxxas Link App compatibility.  Information about Traxxas Power Up Program can be found here. 

Features: 

• TSM makes Traxxas vehicles easier to drive, particularly on loose surfaces
• TSM makes driving more fun by allowing the driver to accelerate harder and drive faster with much greater control
• TSM works to stabilize vehicles over rough surfaces as the gyro effect of the spinning front tires continues to “steer” when the vehicle is in the air
• TSM dramatically improves braking performance, preventing the vehicle from spinning out
• TSM allows faster cornering speeds
• TSM never restricts throttle (or fun!)
• TSM allows the driver to accelerate harder when exiting a turn
• TSM works invisibly in the background
• The driver maintains their connected feel with the vehicle
• The amount of TSM assistance is fully adjustable
• TSM can be turned off or adjusted from the TQi Transmitter
• TSM is fully compatible with Traxxas Link
• TSM does not require any complicated set up or instructions