This is a pack of four Hitec Energy Rotor 60 Amp 2-6S
Brushless Electronic Speed Controls for Multirotors.
FEATURES: Designed specifically for multirotor application
Pre-set ONESHOT synchronization
Smooth and accurate throttle linearity with low internal resistance
BLHeli firmware
Fast refresh rate up to 600Hz
Auto signal loss throttle shutdown
Supports high RPM motors
Thermal overload protection
INCLUDES: Hitec Energy Rotor 60 Amp ESCs with Instructions
REQUIRES: Motor and ESC connectors
SPECS: Continuous Burst/Current Rating: 60A/70A
Battery Compatibility: 5-18 cell NiMH, 2-6S LiPo
Dimensions: 1.18 x 2.17 x 0.51" (30 x 55 x 12.9mm)
Weight: 1.76 oz (49.9g)