Features ABS MATERIAL: Made of premium ABS material, this printer has a retro appearance, wear and scratch resistant, has a long life span. MULTI FUNCTION: This printer provides for NI IMBOT APP functions such as automatic template matching, image recognition, and batch printing, as well as over 20 fonts and thousands of image materials. APPLICABLE SCENARIOS: This label printer is an ideal tool for supermarkets, stores, clothing, jewelry, small business owners, offices, and home organizations. EASY TO USE: B21 Bluetooth label printer is compatible with for various devices. Install the for NIIM BOT application, open the B21 label printer, and open the Bluetooth connection. Select and connect printer model B21 from the for NIIM BOT app, and enjoy printing. 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 (comes with built-in battery) Printing method: thermal printing Resolution: 203 dpi. Connect computer: USB (requires driver installation) Features: Wireless design, supports long distances Print directly without ink, toner or tape. Supports all popular label formats: price, date, size, weight, name, etc. Widely used and easy to use. Small and lightweight, convenient to carry. Roll paper: approx. 55 x 45 mm / 2.17 x 1.77 inches. Applicable label width: approx. 0.8 to 2 inches / 2.03 to 5.08 cm. Size: approx. 13 x 9.4 x 6 cm / 5.1 x 3.7 x 2.4 inches. Package list: 1 x printer. 1 x roll paper. 1 x data cable. 1 x user manual (English language Package List 1 x Printer 1 x Roll Paper 1 x Data Cable 1 x Manual