Perfect for use in mobile or event catering the sam4s er 230bej is the ideal compact solution when you have limited access to space or mains power hugely flexible the er 230bej can be powered via internal rechargeable battery or mains power meaning accurate cash handling even if youre selling fast food in the middle of a field with front and rear displays rear backlit as well as the quiet thermal printing the er 230bej is one of the most flexible small cash registers available thermal