Feature: Portable device suited for outdoor usage Black mark paper location sensor Low battery indicator(7.4v, 2000mah) Equipped with lithium battery for 8 hours continuous work Vairous interface communication and interface capabilites Bluetooth with high communication speed Easy paper loading High printing speed , up to 80mm/s. Application : Mobile pos/retail Hospitality Packing citation Deliveries Onboard transportation Field reparts/installation Warehouse/ logistics Utility billing/meter reading Specification: Model ptp-ii Dimension(w x l x h) 79*110*45mm Print method line thermal printer Paper width 58mm Print width 48mm Weight ( g) 235 (not including the paper roll) English, figure, symbol, chinese, graph, curve, icon pre-stored, barcode (code39/ean13/ean8 /codabar/code128/code93/itf), Qr code, pdf417 Dot pitch (resolution) 203dpi/8 dots/mm Interface Irda/raw-ir, wifi, bluetooth, rs232, mini usb Power 2000mah 7.4v rechargeable lithium battery Recharge adapter stand by recharging / ac adapter Self-check without paper /cover open Black mark test supported Paper feeding Easy paper loading Commands Esc/pos compatible with order sets Paper cut By hands Operate setting Temperature -10¡ãc~50¡ãc ; humidity 20%~85% Recharge setting Temperature 5¡ãc~40¡ãc; humidity 20%~85% Storage setting Temperature -20¡ãc~70¡ãc ; humidity 5%~95% Standard accessories Long-term preservable paper, ac adapter, li-ion battery, usb cable, leather coat  Optional accessories serial interface cable/ cd 20pcs/carton