Be forewarned...I bought a new P4 only to find that the gimbal was glitchy (droop, gimbal motor overloaded messages, etc). Never even had the chance to power up the motors, much less fly. Contacted DJI Service and they said to pack it up and send to them for an exchange, even though I had already thrown away the retail outer box. Verrrry long story short (and after a month of arguing and upset phone calls, often on hold for an hour) I was told they would not exchange it because I didn't have the retail outer box. Really??!! They said all they can do is repair my never flown unit. Well, my repaired P4 just arrived...only to discover that it isn't the original bird I bought (different serial number). So essentially I spent almost $2,300 on a new P4 and lots of accessories only to have been sent back a refurbished P4. I wish I would have bought it from Apple. Nobody at customer service was empowered to do the right thing and could only quote policies from the Shenzhen handbook. I've sent complaint emails about the experience with no response. These guys need to do a serious reboot on their attitude to customers and learn what customer service means.