SEIKO electronic dictionary SR-510 with Japanese dictionary function. - Brand: SEIKO - Model: SR-510 - Language: Japanese - Power: AA batteries (2) Thank you for viewing. I bought this for my mother who doesn't know how to use a smartphone, but she doesn't seem to use this either, so I'm putting it up for sale. It has been sitting in a drawer for a long time, so the box and instruction manual have stains, but the main unit is very clean as it hasn't been used. Operation confirmed. Please feel free to ask if you have any questions.