Guangdong WeiLi Intelligent Development CO.,LTD. 
Product Model: K150 (Pressure-Based Altitude Hold + Optical Flow) 
Product Description: Four-rotor, three-propeller helicopter without a tail rotor 
Product Material: Engineering Composite Material 
Product dimensions (approx. in mm): Rotor diameter 244 mm, fuselage length 275 mm 
Height 77mm" 
Carton quantity: 12 pieces per carton 
Color box dimensions (cm): 36*26.5*9 cm 
Outer carton dimensions (cm): 56*38*57 cm 
Product weight: approximately 90 grams (including battery) 
Packaging Sealed Box 
Applicable Age (AGES) 14+ 
Unit Price (Ex-Factory Price/RMB): ￥280.00 
Full product functionality: “1. Scaled down to the exact proportions of the AS350 ‘Little Squirrel’ helicopter, with a meticulously detailed exterior and highly realistic three-rotor design without auxiliary wings.” 
2. The propeller blades are designed based on aerodynamic principles, delivering powerful thrust and inherent stability. 
3. Equipped with a 1106 external-rotor brushless motor for stronger power, paired with a 3.7V 500mAh 25C high-discharge battery. 
4. Simple four-channel design featuring a six-axis gyroscope and barometric altitude hold for more stable flight; remote control with one-key takeoff, one-key landing, ascent/descent, forward/backward movement, left/right turning, and lateral flight—making the product easier to operate and ideal for beginners. 
5. The remote control features a dedicated joystick mount, delivering a more refined tactile experience and more precise centering, ensuring smoother and more comfortable operation for users. 
6. The 6G mode uses a 6-axis gyroscope for stable flight, making it especially suitable for beginners. 
7. 4-channel remote control with low-voltage alarm, large-to-small servo ratio conversion, and other functions. It also features a dedicated hover midpoint setting for aircraft—simply enter the settings mode to access it. 
8. Comes with a dedicated USB charger for more effective overcharge protection. 
9. Equipped with high-efficiency 2G digital servos that deliver fast response, high precision, and accurate centering, ensuring a smooth flying experience and extended service life. 
10. New “signal-loss prevention” feature for drones: If the remote-control signal distance—whether indoors or outdoors—abnormally drops and control is lost, the drone will maintain its current altitude for 2 seconds before gradually descending. To regain control, promptly restart the remote controller before the drone touches down, then push and pull the throttle stick up and down to reconnect and resume operation. 
                                    
Flight time: approximately 6 minutes 
Charging time: approximately 80 minutes 
Remote Control Mode: 2.4 GHz remote control (6 AA batteries not included) 
Remote control range (approx.): 80 meters 
Number of drive motors: Main motor (brushless) 1106, 11200 KV; Tail motor (coreless cup type) 8520. 
Battery specifications: 3.7V, 500mAh, 20C (with protection board). Remote control requires six AA batteries, not included. 
Product accessory list: “Sealed box packaging * 1, helicopter * 1, remote control * 1, instruction manual * 1, charger * 1, fan blades * 3,” 
Large gear × 1, lithium battery × 1, screwdriver × 1, hex key × 1, landing pad × 1