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simply add 4 AA batteries to the radio and charge the included main battery to begin digging
Four motor drive system
there are better options
Easy to install
This is the TXR version which means it includes a Tactic receiver
ZTW Spider 20A OPTO ESC "Ready to Fly (RTF)" simply add 4 AA batteriesZTW Spider 20A OPTO ESC ZTW5020301 ZTW Spider OPTO ESCs are quality speed controllers and designed for simple installation and easy setup. These ESCs have proven to offer excellent performance in Multi rotor applications. If you are starting out in Multi rotors and need an easy to install solution that is tested and proven to work with Multi rotor craft then these speed controllers have you covered. The ZTW Spider 20A OPTO ESC features a very smooth