It can print 58mm wide thermal paper. Paper dimensions 40mm. High-speed and clear printing. Superpower lithium electricity, standby time can reach 5-6 days. Auto sleep, auto awake, save electricity. Small size, lightweight, reliable performance, simple to connect and easy to use. Multi-language support. Low operating costs (no ribbons, ink cartridges). Support QR code and barcode. 1500 mah battery. Voltage:100 - 240 V. Print Speed: 16ppm. Maximum Paper Size: 58mm. Size: 200 x 130 x 80 mm. Weight: 1.5 kg.