ZeroTech Dobby-Specifications

Wind Resistance	Up to 17.4 mph / 28 km/h
Flight Ceiling	Absolute: 9842.5' / 3000 m (above sea level) Using Optical Flow: 9.8' / 3 m (AGL - above ground level)
Range	Up to 328.1' / 100 m line-of-sight
Hovering Accuracy	Vertical：±0.3' / 0.1 m (with optical flow positioning) ±1.6' / 0.5 m (with GPS) Horizontal：1' / 0.3 m (with optical flow positioning) ±0.3' / 0.1 m (with GPS)
Maximum Flight Time	9 minutes

Camera
Sensor	1/3.06" CMOS
Effective Pixels	13,000,000
Lens	FOV: 75° Focal Length: 28 mm (35 mm Format equivalent) Aperture: f/2.2 Focus Distance: Infinity
Resolution	Photo: 4208 x 3120 Video: 4K30, 1080p30
Photo Modes	Single shot Timer Burst (2 to 15 photos) Self-Timer (3 / 5 / 10 / 20 seconds)
Image Stabilization	Digital 3-axis stabilizer
ISO	100 to 3200
Exposure Compensation	EV Range: -12, -8, -4, 0, 4, 8, 12
Recording Formats	Photo: JPG Video: MPEG-4 AVC / H.264 (MP4 wrapper)
Video Downlink	Interface: via Wi-Fi to mobile device Resolution: 640 x 480 at 30p; 320 x 240 at 30p Delay: 160 ms average (depending on conditions)
Camera Angle Adjustment	-90 to +22.5° in 5 steps (manually adjustable)

Flight Control System
CPU	2.3 GHz Qualcomm Snapdragon quad-core
GPU	Adreno 330
DSP	Hexagon DSP
RAM	2 GB
Memory Clock Speed	8 MHz
Storage	16 GB
GNSS	GPS, GLONASS
Optical Flow Sensor	Optical flow / ultrasonic wave (requires >15 lux illumination)
Wi-Fi	Frequency: 2.4 GHz, 5 GHz Transmit Power: 19 dBm (2.4 GHz); 25 dBm (5 GHz)
Connectivity	1 x micro-USB port

System Requirements
Mobile App	Android: 4.3 and above iOS: 8.0 and above

Battery
Chemistry	Lithium-ion polymer (LiPo)
Capacity	970 mAh / 7.37 Wh
Voltage	Nominal: 7.6 V Maximum: 8.7 V
Operating Temperature	Charge/Discharge: 32 to 113°F / 0 to 45°C
Charger	Voltage: 9 V Rated Power: 15 W USB Type-C

General
Dimensions	Folded: 5.3 x 2.6 x 1.4" / 135 x 67 x 36.8 mm Extended: 5.3 x 5.7 x 1.4" / 135 x 145 x 36.8 mm
Weight	With Battery: 7 oz / 199 g

Packaging Info
Package Weight	1.15 lb
Box Dimensions (LxWxH)	6.2 x 4.1 x 3.5"