Mini bluetooth printer mp300 is with special design, small size, low noise and high printing speed make it convenient to use. Features: 1.Panel built-in gb18030 characters 2.High printing speed and low noise 3.Voltage: 5.0 ~ 9.0 v. 4.Small size makes easy installation Technical parameters: Print : Character: Character set:ibm character set ii, gb2312-80(chinese) Print font:ank :12 x24 chinese: 24 x 24 Character per line:32/42 Paper specification: Type:thermal paper Thickness:0.06 to 0.07mm Width:57.5± 0.5mm Max roll diameter:40.0mm Roll core inner diameter:13mm(min) Reliability: Mcbf:(mean cycles between failure)15 million lines Auto-cutter:n/a Tph:50km Barcodes:ean-13, ean-8, upc-aupc-e, code39, code93, code128, codabar, interleaved25 Emulation:esc/pos Sensor:paper end sensor Interface:bt:rs-232, bluetooth Power adaptor:9v dc/2a Battery power:dc 7.2v, 1.5a rechargeable li-ion battery Battery duration:100m continuous printing Physical: Weight:275g(including battery & roll paper) Dimension:(w×l×h)102 x 77 x36mm Color:beige Ambient: Temperature: Operating:5~ 45 °c Storage:-20~70°c Humidity: Operating:20~85% Storage:5~95% Welcome to contact us if you are interested in our product!