This is Spektrum RC Firma 100 Amp Brushless Smart ESC and Motor Combo. This powerful brushless combo offers a 6500kV motor paired with a specifically tuned for 1/10 scale stock and pro 2S no prep drag racing 100 Amp ESC. Making it an excellent easy plug and race option for replacement, upgrading or starting a new build. 

Features: 

• Smart all in one telemetry
• Powerful 23-bit ARM M4 processor
• High RPM performance motor and ESC
• Easy programming with multiple methods (Smart Transmitter/Smart programming box/Smartlink USB)
• Compact design to fit most applications
• Ready to install with no soldering needed
• High heat resistant IC5 connectors
• Aluminum heat sink with a cooling fan for high efficiency
• Multipoint protection (Over-current/Thermal/ Failsafe/LiPo low-voltage cutoff)
• Waterproof design

Specifications: 

• Motor:
• Type: Brushless/Sensorless
• Length: 1.7" (43mm)
• Outer Diameter: 1.41" (36mm)
• Weight: 4.9oz (136g) 
• RPM/Volts: 6500kV
• ESC: Firma 100
• Maximum Burst Current: 650A
• Maximum Continuous Current: 100A
• Forward: Yes
• Reverse: Yes
• Brakes: Yes
• Programmable: Yes
• Adjustable Timing: Yes
• Connector Type: IC5
• Output Connector: 4mm bullets
• BEC Continuous Current: 4A
• BEC: Yes 6V-7.4V
• Input Voltage: 2S-3S LiPo/ 5-9 Cell-NiMH

Includes: 

• (1) Spektrum Firma 100Amp Brushless ESC
• (1) Spektrum Firma 6500Kv motor
• (1) Sticker sheet and mounting tape
• (1) Product manual