Technomax tm-6557 electronic pocket calculator economical calculator with which you can perform basic operations pocket size, 8 digits, solar powered and battery powered, with memory auto power off correction key case square root key maximum 10 pieces of this product can be ordered. swordslife reserves the right to cancel orders over 10. more than 50 stocks are available to be sold at the campaign price. the seller determines the sale price of the product you have examined. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.