H22 Portable Bluetooth Thermal Printer – 48mm Mobile Printer with 2500mAh Battery & SDK

Ultra-Portable & Ergonomic Design

• Ergonomic Grip – Beautiful arc design fits comfortably in the palm

• Easy-Open Lid – Beautiful ejection lid design for quick paper loading

• Humanized Paper Slot – Directly place paper face down, simple and intuitive

• Compact Size – Lightweight and portable for all-day carry

• 1m Drop Protection – Advanced protection against falls and shocks

High-Performance Printing

• Print Speed – ≤90mm/s for fast on-site printing

• Print Width – 48mm (58mm paper width)

• Resolution – 203dpi for crisp text and graphics

• Adaptive Printing Mode – Compensates for voltage fluctuations, ensures clear print quality

• Low Current Mode – Maintains print quality while dynamically adjusting speed

• Voltage Adaptive Mode – Real-time detection at 7.2V, automatic switching

Advanced Image Printing

• 4 Image Processing Algorithms – Bayer, Floyd-Steinberg, Atkinson, and Threshold for photo/texture printing

• Customizable Parameters – Adjust threshold, scaling options

• Preview Function – Original and grayscale preview before printing

Extensive Language Support

• Multi-Language Printing – Supports Thai, árabe, ruso, vietnamita, and more via CodePage and UTF-8

• Right-to-Left Layout – Perfect for Arabic and other RTL languages

• Bitmap & Curve Printing – Print charts, ECG waveforms, and custom graphics

Powerful Connectivity

• Bluetooth 4.0 Dual-Mode – BR/EDR + BLE, stable connection up to 55m

• TYPE-C Interface – Modern reversible connector with rubber plug for dust/water protection

• Universal Charging – Use standard phone charging cables, no more lost mini‑USB cables

• Multi-OS Support – Android, iOS, Windows

Long-Lasting Battery

• 2500mAh 7.4V Polymer Lithium Battery – High capacity for extended field use

• Built-in Power Management Chip – Prevents overcharging, extends battery life

• Battery Level Display – Intuitive LED indicators for remaining power

• Long Standby – Optimized power consumption

Complete SDK for Secondary Development

• Full SDK Access – Customize printer functionality for your specific needs

• Comprehensive APIs – USB, Bluetooth, TCP, UART interfaces

• Real-Time Status Monitoring – Paper out, overheating, recovery events

• Custom Commands – Set and query printer parameters

• Image Printing APIs – Multiple algorithms for photo printing

• Barcode Support – UPC-A/E, EAN13/8, CODE39, CODE93, CODE128, ITF, CODABAR, QR Code

• Widely Compatible – Works with most Android apps (Kyte, ex, PRO, etc.)

Robust Protection

• Motherboard Protection – Surge protection, electrostatic protection, reverse connection protection

• Mechanism Protection – Electrostatic protection connections

• Rubber Plug Design – Prevents water and dust ingress at TYPE‑C port

User-Friendly Features

• LED Indicators:

  • Green steady: Power on

  • Blue steady: Bluetooth connected

  • Red flashing: Paper out / Fault

• Easy Paper Loading – Simple drop-in design

• Self-Check Function – Prints test page with current settings

• Feed Button – Manual paper feed when needed

• No Ink, No Toner – Thermal printing saves money and hassle

Wide Applications

• Medical – Lab results, patient labels

• Retail – Mobile POS, receipts

• Logistics – Delivery labels, proof of delivery

• Food Delivery – Order tickets

• Traffic Enforcement – Parking tickets, fines

• Field Service – Invoices, work orders

• Gas/Electricity – Meter reading tickets