Specification:Brand: Eachine - Item: E120SProduct size (cm):Rotor diameter:290mm - Body length: 265mmHeight:88mmWeight:115gRadio Frequency Band: 2.4GHz - Remote control distance (m): more than 120 meters - Battery:LI-POLY 7.4V(500MAH) 30CCharging time: about 90 minutes - Use time ...Specification:Brand: Eachine - Item: E120SProduct size (cm):Rotor diameter:290mm - Body length: 265mmHeight:88mmWeight:115gRadio Frequency Band: 2.4GHz - Remote control distance (m): more than 120 meters - Battery:LI-POLY 7.4V(500MAH) 30CCharging time: about 90 minutes - Use time: 5-8 minutes - Violent 3D flight: 3-4 minutes - Function Description:1The smallest and most compact micro-helicopter currently on the market; it adopts flybarless design, direct drive of the main motor, electronic stabilization system, more accurate feel, more stable flight, and optimized structure to reduce the probability of damage.2The propeller is designed with aerodynamic principles, providing strong power and self-stability of the body. It has high efficiency, power saving and long flight time. The blade is made of nylon + carbon fiber composite material, which has high strength, good toughness, impact resistance, no deformation and durables.3 Use 2405 brushless motor for direct drive to reduce gear agitation, with low noise