The BL-RS4 is equipped with the same program as the BL-PRO4. but is fanless. supports motors of 5.5T or less. and is priced at a reasonable price. Detailed settings such as boost adjustment function by rotation speed and throttle position. turbo lay and slope adjustment function. and brake frequency can be changed for each operation are now possible. allowing it to match various driving styles.
The housing uses a full aluminum case with high cooling efficiency as a heat countermeasure. It boasts durability that can withstand even the toughest racing scenes.
Program changes can be made using a dedicated programmer (sold separately). but by installing a Wi-Fi module (sold separately). it is also possible to remotely control the device using a smartphone app. In addition to changing programs while looking at the screen. you can also check the data after driving in graph form. and in the future we plan to support ESC updates.

��Brushless sensored type controller
��Programmable
��Program can be changed with YBP4 programmer (optional)
��Equipped with boost/turbo function
��Power feeling can be changed
��Equipped with forward. auto brake. and brake frequency change functions
��Equipped with detailed brake adjustment function
��Compatible with Li-po 1 cell battery (3.7V) for driving
��Full aluminum case
��ABS function
��Reverse rotation function
��Motor connection position switching function
��Compatible Wi-fi module BL-WM
��Compatible programmer BL-YBP4
*Conventional BL-YBP/YBP2/YBP3 programmers are not compatible and cannot be used. The new BL-YBP4 programmer is exclusively for BL-PRO4/RS4/SP4.

SPECIFICATION
Compatible motor: Brushless 5.5T (8.5T when using turbo function. 8.5T or less recommended for drift driving)
Input voltage: NIcd/NiMH: 4 to 6 cells Lipo/Life: 1 to 2 cells
BEC voltage: 6.0V/3.0A (7.4V/3.0A when setting BEC boost)
Case size: 32.9 x 34.6 x 21.0mm (excluding protrusions)
Weight: 50g (body only)