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Is there a manual that includes the full spec of the radio Jumper T20s gemini. This product is not listed on the official jumper website. I’m looking for a compact transmitter and I’m in-between the jumper T20 and the radio master pocket elrs. Both of which are on your website. I would really like to have the full spec - data sheets/ manuals of these products before I buy.
I hope you can help
Hi
To be perfectly honest, Jumper is not known for their excellent after sales support, they will help with any issues but they are often slow. They also do not provide any product manuals for their items so if this is something you need that can help you make your mind up when deciding between Jumper and Radiomaster. Jumper does have some very cool designs and they work very well in the most part, both radios run edgeTX software and share a lot of the same components electronics wise. BUt similarly they cost alot less than radiomaster radios.
Radiomaster Manuals, Firmware etc. can all be found on their downloads page here where they keep it updated often - https://www.radiomasterrc.com/pages/downloads
On the other hand, Jumpers download page here - https://www.jumper-rc.com/download/ is not updated and does not include info for many of their latest radios.
Hopefully that will help you with your decision, and hopefully you do decide to order your radio from Unmanned Tech 
Any other questions, please let us know