This ESC is the factory fit unit that is included in the ready to run 3.4 series cars that are fitted with brushed motors.

FEATURES:
 - Water-proof and dust-proof for all weather races
 - Small size with built-in capacitor module
 - Multiple protections: Low voltage cut-off protection for Lipo or NiMH battery / Over-heat protection / Throttle signal loss protection
 - Easily programmed with “jumpers”
 
SPECIFICATION:
 - Application: On-road/Off-road
 - Cont. / Burst Current - forward: 40A / 180A
 - Cont. / Burst Current - reverse: 20A / 90A
 - Input: 2-3S LiPo / 5-9 Cells NiMH
 - Battery "Low-Power" Cut-off: NiMH 4.5V / 2S LiPo 6.5V / 3S LiPo 9.75V
 - Motor Limit 2S LiPo/5-6 Cells NiMH: 540 or 550 Motor =12T or RPM <30.000 @ 7.2V
 - Motor Limit 3S LiPo/7-9 Cells NiMH: 540 or 550 Motor =18T or RPM <20.000 @ 7.2V
 - Maximum Reverse Force: 50%
 - Overheat Protection: 100°
 - Resistance: Fwd: 0.002 Ohm, Bwd: 0.004 Ohm
 - Built-in BEC: 2A/6V (Linear Mode BEC)
 - Plug System: Tamiya
 - Plug & Drive System: yes
 - On/Off Switch: yes
 - Dimmension (L/W/H): 46.5*34.0*28*5 mm
 - Weight: 70g
 
SCOPE OF DELIVERY:
 - WP1040 Brushed Standard ESC
 - Manual

Our comment: Appears to be a rebranded Hobbywing unit.