Four AAA battery Holder Case with wire leads. Slide on cover clips in place to secure batteries. Power switch built in allows you to turn power on and off while leaving batteries inside Total Voltage: 6V with 4X 1.5V AAA battery or 4.8V with 4X 1.2V battery Dimension: Approx. 49mm x 63mm x 16mm.(L*W*H) Great for repair or DIY electric Projects. Great for repair or DIY electric Projects. Four AAA battery Holder Case with wire leads. Slide on cover clips in place to secure batteries. Power switch built in allows you to turn power on and off while leaving batteries inside. Total Voltage: 6V with 4X 1.5V AAA battery or 4.8V with 4X 1.2V battery. Lead Cable Length: 6 Inch. Dimension: Approx. 49mm x 63mm x 16mm.(L*W*H). Color: Black.