Feature: 1. Clear printing: Clear, fast and reliable printing, which can be easily connected and operated by both for Android and for iOS devices. 2. Portable design: Small and light, easy to carry around, and meet the demand of bill printing at any time. 3. Multifunctional use: It is suitable for bill printing in gas, logistics, take away, traffic parking, retail, electric power and other industries to improve work efficiency and service quality. 4. Bluetooth wireless connection: Bluetooth 4.0 dual mode Bluetooth (BR/EDR+BLE), with an open space of 55 meters, without complicated cable connection and setting. 5. Long battery life: Polymer lithium ion battery 7.4V 1500mAh, built in power management chip, to avoid overcharging, protect the battery and prolong its service life. Specification: Item Type: Mini Thermal Printer Material: Plastic Bluetooth: With Bluetooth Function Width: 58mm/2.3in Battery: 1500mAh Polymer Lithium Battery (Shipped with Built in Battery). Package List: 1 x Bluetooth Printer1 x Plug1 x Charging Cable1 x Manual