: [NO1.]---Pls read through the instrucion before you fly. Under Land Mode if the drone loses control, please stop it immediately and check whether there are hair or anything stuck on the propellers. [NO2.]---When you have 2 or more drones, don’t turn them on at the same time. Only when one drone is paired with the remote successfully, you can turn on another drone. [NO3.]---Always do calibration after pairing or when the drone loses balance to keep the drone balanced. [NO4.]---Long press the direction joystick to active trimmer functions( can adjust right,left,front,back) when the drone keeps drifting to one direction in the air. : 2 Pack with 4 Batteries -- 2 drones and 4 batteries are included in 1 package. One blue and one red. The 2.4Ghz remote enables 2 players to fly at the same time and have a race. Each batteries last 7 minutes and 4 batteries provide 28 minutes of play time. This will definitely be a great entertainment for the whole family to get the whole family closer and make wonderful parent-child time. A great gift choice for your grandchildren, kids, other family members, friends or business partners. If there is any problem, let the CS help you out!. : 3 speed mode, race car mode, 3D filps, headless mode can bring a lot of fun to Kids as well as adults. [3 SPEED MODES]----Kids can play it under speed mode of low and medium, and take fuller control of this drone. Adults can play it under the fast speed mode to feel the fast and furious; [RACE CAR MODE]----in the race car mode, this drone can move forward, turn left or turn right when running on the smooth ground. Under the FAST SPEED, it can do awesome drift as a racing car, really fun for adults. [3D FLIPS FUNCTION]----enable this drone to do wonderful flips stunts in 4 directions( forward, backward, left, right) in the air. : [Shape]---This Drone is made in the shape of racing car. When it flies, it performs much like a cool flying racing car, not only a drone. [Led light]----the small drone is also equipped with cool vivid running led light, which gives this drone a sense of mystery and technology. , : [DURABLE]---The body of this drone is made from resistant PVC material which is used on racing car toy, so it can withstand an impact speed of 35 Miles/Hour. [SAFETY]---The full propeller guards are made from Nylon ABS Plastic, which fully cover all propellers to prevent children from getting hurt by the rotating propellers. The One key emergency stop function of this indoor drone can launch in a snap to avoid any damage to the drone, furniture, people or pets nearby. [EASY]---this small drone is equipped with Altitude Hold function,so that the drone will auto-hover in the air when you are playing with it. Very easy for kids and beginners. This is a Mini Drone, and a Flying Car, which is the Newest and Most Innovative Version in All Mini Drones. Equipped with 2 in 1 Land Mode and Fly Mode, it can performs not only as a mini drone, but also a speedy toy racing car(on smooth surface), which provides you a much higher performance experience than all current mini drones in the market. You can enjoy both flying fun and racing fun from it but only spend as much as a mini drone.