Drone model: u61 weight: 63g flight time: 6 to 8 minutes wifi distance: 20 to 30 m (outdoor and unobstructed) hovering: enabled operating temperature rang: 0° to 40°c dimensions: 140 x 140 x 43. 5 mm remote controller operating frequency: 2. 4 ghz transmission distance: 50 m (outdoors and unobstructed) operating temperature range: 0° to 40°c battery: 4—1. 5 v alkaline batteries aa mobile device holder: smart phones app / live view app name: flyingsee image transmission system?2. 4g wi? Real time image transmission?480 p@20 fps operation system?this software is suitable for mobile phones in the ios 9. 0 or later and android 4. 4 or later system, main feature aerial photography, altitude hold mode, heading hold mode, low battery alarm, out of range alarm, app control, real-time fpv, one button take off/landing, up, down, forward, backward, turn left/right, fly left/right camera image resolution?640—480p static photography mode?single shoot video resolution?640x480p image mode?rgb frame rate?25 file system?fat 32 image format?jpeg video format?mp4, h. 264 tf card?unable operation temperature?0°c to 40°c gimbal stable?adjustable camera controllable range?tilting?-90° to 0° flight battery capacity: 500 mah voltage: 3. 7 v battery type: lipo energy: 1. 85 wh charging temperature range: 5° to 40°c charging time: 60 to 80 mins charger input?5v?2a (udi-u61s)