Definition: 203DPI Printing speed: maximum 90mm / s Printer voltage: 100-240V Color: white pink blue Input: 5V 2A Built-in battery: 1000mAh lithium battery rechargeable Support supplies size: about 57*30mm/2.24*1.18 inch thermal paper App supports 8 languages: Chinese, English, Russian, Japanese, Thai, Korean, Spanish, Portuguese Size: about 79x79x42 mm/3.11x3.11x1.65 inch Material: ABS and PC Net weight: about 155g Support system: for Android 4.4.4 or for IOS 8.0 Connection method: Bluetooth or USB connection