For the price, it's okay Attention to beginners, it quickly breaks propellers, and even protection, it will change, but the overall price increases, as one of the engines do not grate ... Duration of the flight battery, 3 / 4min no more.
Updated: grilled engine after a few tries .... but the seller offers to replace it by sending me a replacement. To be continued
upd 21/01 of 2 engines without charge: courteous and helpful seller! I spend 5 stars suddenly
