It comes with:2 satellite receivers1 E-switchThere are 11 PWM ports and 3 XBus ports. Using the XBus ports, it is possible to utilize more than 11 servos.Weight: 3.7oz, (107gram)

Hybrid system with PWM(11) and XBUS(3) output ports using DMSS 2.4GHz technology.
Dual Battery System
Two (DMSS)RA03TL Sub Receivers included
Power switch included (E type)
A highly efficient system that monitors voltage and manages the power supply between batteries in a balanced manner to prevent biases in power consumption.
Easy Bind System

Dimensions: 2.36 x 2.83 x 0.58 inches (60 x72 x 14.5mm)
Weight: 3.7oz /107g
Operating Voltage: under 12.6V
Modulation: DMSS 2.4GHz
PWM Ports: 11 XBUS Ports: 3

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11BPX DMSS 2.4GHz Receiver with two RA03TL satellite receivers (XT60)

$269.99