Walkera 5#4Q5 2.4G RTF 4CH RC Helicopter Sku1139 item#: 5#4Q5 Retail price: US$179.99 Wholesale Price: Qty.Range(unit) Price(per unit) Discount 1 US$149.99 No Quantity: Unit(s) Description: Specification 1). Tail Rotor Dia. B: 410 mm 2). Main Rotor Dia. A: 410 mm 3). Gyro: Built-in 4). Drive Motor: 2*180PH 5). Receiver: RX-2403D 6). All-up Weight: 269g (Battery included) 7). Transmitter: WK-2402 8). Battery: 7.4V 800mAh Li-Po 9). Overall Length: 336 mm 10).Servo: WK-7.6-3 ;weight 8.4g ;speed 0.12sec/60 o (4.8V) ;torque 1.4kgf.cm(4.8V) ;dimension 22.5X11.5X24mm Features 1). CNC-machined metal rotor head and coaxial structure,highly emulational shape with the-state-of-the-art workmanship. 2). New 2.4G spread spectrum technology, with the functions of automatic code pairing and ID assignment, can allow many RC aircrafts to fly in the same field and same time. 3). It utilizes the 2.4G 4-in-1 receiving circuit with the functions of servo extent adjustment and built-in gyro sensitivity adjustment. 4). High performance 2 x 180PH motor, powered by 7.4V 800mAh Lipo, offers 10-to 12-minute flight time, depending on the flight modes. Tell us what you think about this item, share your opinion with other people. Please make sure that your review focus on this item. All the reviews are moderated and will be reviewed within two business days. Inappropriate reviews will not be posted. Have any question or inquire for this item? Please contact . (Our customer representative will get back shortly.)