Features: Brand new and high quality. Replacement for 2x AA AAA battery power supply cord. This eliminates the need for 2x 1.5V AA AAA batteries. Suitable for radio, electric toy, holiday LED lights, CD player, clocks, luminara candles, calculator, power remote controller, keyboard, Christmas advent calendar display, Walkman and more 3V power supply devices. Great to be able to connect it with other 3V Christmas items and not have to worry about turning on or off. Input USB 5V, output DC 3V. This cable cannot be used to charge batteries. Power supply from USB charger, power bank, car charger, and more USB adapters. Black cable is -, Red cable is +. Color: Black. Material: Plastic. Power cable length: 104cm. Input: DC 5V 2A Max. Output: DC 3V 1A (Max). Note: 1. Conversion: 1cm=10mm=0.39inch. 2. Please allow 0-1cm error due to manual measurement. Please make sure you do not mind before purchasing. 3. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1x DC 5V to 3V Power Supply cable.