Features EASY TO USE: B21 Bluetooth label printer is compatible with many devices. Install the for application, open the B21 label printer, and open the Bluetooth connection. Select and connect APPLICABLE SCENARIOS: This label printer is an ideal tool for supermarkets, stores, clothing, jewelry, small business owners, offices, and home organizations. MULTI FUNCTION: This printer provides for APP functions such as automatic template matching, image recognition, and batch printing, as well as over 20 fonts and thousands of image materials. ABS MATERIAL: Made of premium ABS material, this printer has a retro appearance, wear and scratch resistant, has a long life span. AUTO SHUTDOWN: Label printer will automatically turn off when paused for 15 minutes to save power. Specification: Item Type: Wireless Thermal Label Printer Model: B21 Material: ABS Voltage: 5V 2A Battery: 3.7V lithium battery 18650 x 1 1200mAh (shipped with built in battery) Printing Method: Thermal printing Resolution: 203dpi Connect Computer: USB (requires driver installation) Features: Wireless design, supporting long distances Print directly without ink, toner, or tape. Supports All Major Label Formats: Price, date, size, weight, name, etc. Widely used and easy to use. Small and lightweight, convenient for you to carry. Roll Paper: Approx. 55 x 45mm / 2.17 x 1.77in Applicable Label Width: Approx. 0.8 to 2in / 2.03 to 5.08cm Size: Approx. 13 x 9.4 x 6cm / 5.1 x 3.7 x 2.4in  Package List:1 x Printer1 x Roll Paper  1 x Data Cable  1 x Manual  Package List 1 x Printer 1 x Roll Paper 1 x Data Cable 1 x Manual