A1 is a full function general purpose ECR, also A1 has the following outstanding features: easy to hand hold, easy to charge. A1 is a full function general purpose ECR, also A1 has the following outstanding features: easy to hand hold, easy to charge. A1 with built in 2100maH Li-battery, long time work, excellent printing result, clearly display, intelligent PLU name input,… .A1 is the best ...