Device V2-Wireless Data Cash Register System 1GB + 8GB, Europe 4G. Frequent paper roll refills? Never again. Supports 58 mm wide rolls with a 50 mm outer diameter to double capacity. Reduce refill costs. Suitable for indoor and outdoor applications. You can freely choose the network operator and use the corresponding services without the need for a SIM card installation. Dual-band 2.4 GHz / 5 GHz Wi-Fi significantly increases transmission speed and reduces errors caused by frequency congestion.