The Hubsan H107DPLUS X4 Quadcopter is a palm-sized quad-rotor RC helicopter with an integrated FPV camera. The FPV, or first-person view, camera captures 720 x 240 resolution SD video. It transmits wirelessly on 5.8 GHz, and allows you to record videos using a MicroSD memory card slot built into the transmitter. The MicroSD card is sold separately, and the transmitter supports capacities up to 16GB. In addition, the X4 features a 4-channel, 2.4 GHz transmitter (TX) that has a range of up to 328', depending on conditions. On the transmitter you will find a 4.3 LCD screen that allows you to monitor real-time video from the FPV camera and will display vital flight telemetry data to keep you apprised of what is happening in the air. 6-axis flight control system with adjustable sensitivity 3.7V, 380 mAh lithium-polymer battery with USB charging - charging takes approximately 30 minutes. The H107D+ also has the new altitude hold feature, so you can set your altitude and focus on your video.