This RC helicopter weighs below 250g, hence there is no need for UA registration. However, please fly safely.
For more information, please refer to the CAAS website.
https://www.ifaq.gov.sg/caas/apps/fcd_faqmain.aspx#FAQ_2110400
This palm-sized micro helicopter is packed full of features to help make it fun and relatively easy to fly. The flybarless system coupled with the 6-axis gyro stabilization unit gives it a stability not seen in many helicopters of this size before. The included 2.4GHz transmitter gives you full control of the helicopter. It allows you to climb or descend, fly backward and forwards, fly left and right, and rotate left and right. You can also select whether you wish to fly Mode 1 or Mode 2, and also there is a switch to increase or decrease the amount of rudder authority.
One of the features which will help beginners immensely is an auto take-off and landing button, a single press of the one-key button will make the helicopter take-off to an altitude of about 1.5 meters, press the same button again and it will safely land. Then there is the "Altitude Hold", this is controlled via a barometric sensor, the helicopter will hold any height you set and will stay there when the throttle stick is set at neutral. To move to a new altitude simply move the throttle stick up or down until you reach the altitude you want, return the stick to neutral and it will stay there until you move the throttle stick again. An emergency stop function is also supplied, press, and hold the altitude button for 3 seconds and this will stop the motor instantly.
Being flybarless reduces the risk of damage to the helicopter in the event of a crash and also increases the flight time due to less drag. The included 400mAh 25C 1 cell modular battery is quick and easy to install and gives the K127 an amazing duration of up to 16 minutes. This modular battery is charged using the supplied USB charger, this provides a fast and stable charge process. The K127 is manufactured using high-performance components and materials which provide strength, are impact-resistant, and made to last.