No Need To Change Battery Frequently: With this AA battery adapter,you don't need to buy a lot of replacement batteries when the batteries run out,saving you more time and money. | Premium Quality and Safe Charging: AA battery power supply adapter is made of high quality materials with overcharge protection,short circuit protection and overcurrent protection. (Note:Do not attempt to charge the AA dummy batteries with a battery charger,otherwise it will cause a short circuit.) | Unique Design:The thin flat cable coming out of the battery can easily run around the battery compartment cover and be located under the electronic device,effectively solving the problem of the device tilting or standing unstable. | Easy to Use: Put the adapter correctly into the battery case according to the positive and negative poles.Compatible with most low-medium current applications <1 Amp,can be used to eliminate AA batteries in electronic devices using 3 AA batteries. | In the Box: 1 *adapter,3 *battery.NOTE: Due to low amps,some devices such as camera flash may not work.Unable to power electronic equipment by itself, it needs to be used with the AC to DC wall power adapter.Patent applied.