ONLY use the firmware provided here on the product page and not from the Betaflight drop-down menu, our firmware is custom made to work with our FC, using unofficial firmware may cause bugs.
This equipment is being sold under the FCC’s amateur radio rules. Operators must abide by all applicable laws and hold an amateur license to operate this equipment. Use of amateur equipment without a license or use of equipment on restricted frequencies could subject the operator to significant fines by the FCC. By purchasing this equipment, the user is agreeing that they understand these responsibilities and will operate the equipment legally. For information regarding obtaining an amateur radio license, please go to http://www.arrl.org/getting-licensed.
47 CFR 97.215(c) sets a 1 watt limit for amateur devices being used for telecommand. Devices over 1 watt output should not be used for telecommand of model aircraft.
The use and operation of this product in your country may require an amateur radio license, and some countries may forbid its use entirely. It is the responsibility of the purchaser to ensure that the purchase and use of this product meets the requirements imposed by your government’s rules and regulations for RF devices. Do not purchase this product if you are unsure of the government requirements or are not able to comply with them. Ready Made RC, LLC cannot be held responsible for your actions if you purchase and/or use this product in violation of your government's regulations.