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 & 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.

 【Ergonomic Design】Equipped 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 code

 【Modular Design】Users 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: 3503M

 Dimension : : 170x70x40mm(LxWxH)

 Weight:  270g

 Display: 4.0 inch IPS, 800*480

 OS: Android 9.0

 SDK: ZKC SDK

 Development Language: JAVA

 Touchscreen: Capacitive touchscreen 

 Battery Built-in non-removable Li-ion polymer battery,3.7V, 3750mAh

 Battery Charging time: about 150 minutes

 Battery Standby time: about 14 hours of continuous video playback

 Port: Serial port, GPIO, I2C, USB Type-C, etc

 Card slot: 1*SIM card, 1*TF card, Max 128GB

 Adapter: DC 5V, 3A or quick charge adapter 

 Temperature and humidity: Temperature: -10℃~50℃, humidity: 0~95%

 Audio: Receiver, speaker, mic, vibrator

 Video: decode 1080p@30fps H.264/H.265; encode 1080p@30fps H.264 

 CPU: MTK MT6739, ARM Cortex-A53 

 CPU cores: Quad-core

 CPU frequency: 1.3 Ghz

 Memory: 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 module

 1D: 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 variants

 2D: PDF417, MicroPDF417, Composite Code, Data Matrix, Maxicode, QR Code, MicroQR, Aztec

 Rear Camera: 5.0MP auto focus camera

 Flashlight: Rear single LED flashlight

 Package Size: 215x108x75mm/8.4x4.2x2.9in

 Package Weight: 500g/17.6oz

 Packing List:

 1 x Device

 1 x USB Type-C Data Cable

 1 x Adapter