ITEM NAME:4pcs 7.4V USB to SM 4-Pin Li-po Batteries Charge Cable for RC Drone Car Toys Description: Usage: Remote Control Toys, Aircraft, Drone, Quadcopter Using excellent materials, the power consumption is lower. Charger for 7.4V Lithium battery, with internal IC charging protection function. With charging indicator light, the red light will flash when charging and when full charged the red light turn off. Equipped with charging protection and short circuit protection. Specification: Material: Plastic Cable length: Aprox. 65*23*8mm Connector A: USB Male Connector B: SM-4P Connector Female Package Includes: 4 Piece Battery Charging Cable Note: Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor..Connector A: USB Male. Cable length: Aprox. 4 Piece Battery Charging Cable. Using excellent materials, the power consumption is lower. Color may be slightly different since different monitor.