Syma X5 4 Channel 2.4GHz RC Explorers Quad Copter Battery: 3.7V 500 Mah Li-poly, Charging time: About 100 minutes (USB Charging),Flying time: About 7 minutes. Note: Please let the product cool down for at least 10 minutes after each flight. 2.4GHz The excellent frequency & bandwidth, Using Spread Spectrum Technology for Further remote distance Best anti-interference ability, Least power consumption. You could fly more helicopters at the same time, its reaction speed is 100 times faster than other Radio Control. Blade protector Highly elastic plastic protective circle, preventing the blades in flight Cause wear, anti-collision anti-fall performance further enhanced! Colorful flashing lights,Colorful flashing light, keep your Aircraft at night Flying is quite excellent 360Eversion 360Eversion : A key 360roll,continuous roll for perfect actionand wonderful performance