WLtoys V911 PRO Specs Item Name:WLtoys V911 pro 2.4G 4CH RC Helicopter Channel:4CH Frequency:2.4G Flight Distance:100M Height:80mm Length:260mm Charge Time:About 60 Minutes Flight Time:Approx 8 Minutes Helicopter Battery: Rechargable 3.7V 150mAh (Included) Transmitter Battery: 6 x AA Battery(Not Included) Upgraded Canopy,Main Shaft,Landing Skid,Tail Boom WLtoys V911 PRO Price Banggood Price:US$42.47