USB rechargebale AA Battery

I first time see this one, it's amazing idea to charging batteries with USB:

• Brand new product with high quality.
• Includes 2 pieces of TKA USB Ni-MH AA 1.2V rechargeable batteries.
• 1450mAh large capacity, great power and durable to use.
• Can be charged in a computer with USB, plug and charge.
• Easy and convenient to use.
• Caution:Do not disassemble, short circuit or dispose of in fire.

Product Details:
weight: 53 g
szie: 13.7*9.2*2 cm

Pack including:
2 × AA 1450mAh 1.2V USB Rechargebale Battery

You can find in Focal Price for just:

• Price: $ 6.35