Feature:1. High Configuration Android 9.0 operating system, quad-core processor, stable and reliable, simple operation, strong compatibility. 2G+16G large memory, running multiple tasks at the same time, still smooth and not stuck. Support NFC function.2. Built-in Barcode Scanner High performance 1D/2D scanning engine, which can quickly scan and identify 1D/2D/QR barcode, high reflective barcode, frayed barcode, fuzzy barcode and screen barcode, ideal for inventory, warehouse, logistics, retail, etc.3. Multiple Network Modes Support 4G, 3G, 2G, BT and WiFi network modes, and make business data interconnection more stable and efficient, free from geographical restrictions, enjoy high-quality network communication and rapid data transmission anytime and anywhere.4. Long Endurance \u0026 Durable Built-in 3750mAh Li-ion polymer battery, high performance and low consumption processor, long life, ensuring the smooth progress of the work. Made of high quality ABS and PC materials, enabling the terminal durable and has long service life.5. Ergonomic DesignEquipped with 4 inch color screen and full digital keyboard, realize the good experience of large screen and one hand operation. Newly designed ergonomic scanning angle can effectively reduce wrist movement and fatigue. 5 million rear camera with auto focus function, quickly identify the code6. Modular DesignUsers can customize and expand according to their needs to meet the needs of various industries. Supports secondary development of software and hardware to meet user needs in an all-round way.Specification:Features:High Configuration Android 9.0 operating system, quad-core processor, stable and reliable, simple operation, strong compatibility. 2G+16G large memory, running multiple tasks at the same time, still smooth and not stuck. Support NFC function.Built-in Barcode Scanner High performance 1D/2D scanning engine, which can quickly scan and identify 1D/2D/QR barcode, high reflective barcode, frayed barcode, fuzzy barcode and screen barcode, ideal for inventory, warehouse, logistics, retail, etc.Multiple Network Modes Support 4G, 3G, 2G, BT and WiFi network modes, and make business data interconnection more stable and efficient, free from geographical restrictions, enjoy high-quality network communication and rapid data transmission anytime and anywhere.Long Endurance & Built-in 3750mAh Li-ion polymer battery, high performance and low consumption processor, long life, ensuring the smooth progress of the work. Made of high quality ABS and PC materials, enabling the terminal and has long service life.Ergonomic DesignEquipped with 4 inch color screen and full digital keyboard, realize the good experience of large screen and one hand operation. Newly designed ergonomic scanning angle can effectively reduce wrist movement and fatigue. 5 million rear camera with auto focus function, quickly identify the codeModular DesignUsers can customize and expand according to their needs to meet the needs of various industries. Supports secondary development of software and hardware to meet user needs in an all-round way.Specification:Model: 3503MDimension : : 170x70x40mm(LxWxH)Weight: 270gDisplay: 4.0 inch IPS, 800*480OS: Android 9.0SDK: ZKC SDKDevelopment Language: JAVATouchscreen: Capacitive touchscreen Battery Built-in non-removable Li-ion polymer battery,3.7V, 3750mAhBattery Charging time: about 150 minutesBattery Standby time: about 14 hours of continuous video playbackPort: Serial port, GPIO, I2C, USB Type-C, etcCard slot: 1*SIM card, 1*TF card, Max 128GBAdapter: DC 5V, 3A or quick charge adapter Temperature and humidity: Temperature: -1050, humidity: 095%Audio: Receiver, speaker, mic, vibratorVideo: decode 1080p@30fps H.264/H.265; encode 1080p@30fps H.264 CPU: MTK MT6739, ARM Cortex-A53 CPU cores: Quad-coreCPU frequency: 1.3 GhzMemory: 2GB RAM, 16GB ROM Network: 4G (LTE-FDD B1/3/5/8,LTE-TDD B38/39/40/41 ), 3G(WCDMA B1/2/5/8, TD-SCDMA B34/39),2G(GSM B2/3/5/8 )Barcode Scanner Module: 2D image module1D: UPC/EAN, UPC/EAN with supplementals, Code128, GS1-128, Code 39, Trioptic Code39, Code 32, Code 93 Code11, Matrix 2 of 5, Interleaved 2 of 5, IATA 2 of 5, Industrial 2 of 5, Codabar, CodablockF, MSI, Telepen, Code11, GS1 DataBar variants2D: PDF417, MicroPDF417, Composite Code, Data Matrix, Maxicode, QR Code, MicroQR, AztecRear Camera: 5.0MP auto focus cameraFlashlight: Rear single LED flashlightPackage Size: 215x108x75mm/8.4x4.2x2.9inPackage Weight: 500g/17.6ozPacking List:1 x Device1 x USB Type-C Data Cable1 x AdapterPackage List:1 x Device1 x USB Type-C Data Cable1 x Adapter