SJ991 IR Mini 3.5 Channel Sky Writer Flash Rechargeable RC & RTF Helicopter with Gyroscope - Colors May Vary Features: Shining LED Lights can show letters & pictures. Edit any letters & pictures with the software. Misty & bright LED lights. Built-in gyro offers the helicopter a nimble and stable flight; The display lights and flashing words can be toggled on/off by transmitter. Adjustable control speed: High and Low IR 3.5CH RC Helicopter Function: go up/down, go forward/backward, turn left/right Battery for helicopter: rechargeable 3.7V 220MAH Li-po battery (included) Battery for controller: 4X1.5V AA battery (not included) Recharging by USB cable (included) *need to turn on the helicopter when charging Flying time: about 6-8 mins Charging time: about 30 mins Remote control distance: ~ 10 meters Accessory: 1xmanual;1xUSB; 2xmain blades;1xtail blades;1xCD Product Size : 25.50*4.40*10.70cm (10x1.7x4.2in) Package Contents: 1 x SJ991 Helicopter, 1 x Transmitter, 1 x USB charger, 1 x CD Disk Instructions Manual and Software, 2 x Spare Blades Required to Fly: 4 AA Batteries Computer CD Drive with Mini CD reading capability Ever seen those clocks that can display time in mid air? Well that technology has trickled into radio controlled helicopters. We feature the SJ991 infra-red 3.5 channel Sky Writer Helicopter. With the included computer software you can program this helicopter to project any message you fancy. Send a lovely message to your significant other, fly over to the kids room and regulate, or fly over to your roommate and tell them to quite down, the possibilities are endless! With a built in on-board gyro the helicopter is stable and easy to pilot. 3.5 channels give you the ability to ascend and descend, rotate clockwise and counter-clockwise, and pitch forward and backwards.