Specification:
Product name: Battery Box
Battery Model:AA
Number of Bbatteries: 4
Output Voltage: 4.8V-6V
Size: about 70x65x20mm / 2.8x2.6x0.8Inch (LxWxT)
USB Cable Length: 26cm / 10.2Inch
Wire Diameter: 3.0mm / 0.12Inch
Switch: with switch
Package Includes:1PC 4 AA Battery Case with On Off Switch

Feature:
With USB female plug, no soldering required, easy to connect.
Can be used in toys, RC cars, lighted decorations, electronics projects, or anywhere else where you need to have 4.8V-6V DC power.

Note:
1 The price is only the battery box, excluding batteries.
2 The small lid (inside) and the battery case are hot-melt, and there are welding marks. This is a normal technique.