TOOGOO(R) 11.1V 2200mAh LiPo Battery for Futaba JR Walkera Devo7/10 WFLY Transmitter High Quality Transmitter LiPo Battery 11.1V 2200mAh for Futaba JR Walkera Devo7/10 WFLY Transmitter High quality and durable in use. 100% brand new. Easy to install. 3-Cell Li-Po rechargeable battery.