Product Description

Product parameters

Power supply voltage: DC: 3.4-4.2V 1A or above

Communication interface: TTL level interface, compatible with 3.3V2.85V system

Other interfaces: voice microphone lead-out terminal, reset terminal (low level is effective)

SIM card interface: standard MICRO SIM card self-ejecting card holder (card holder according to

Please refer to the silk screen next to the card holder)

Antenna interface: IPX mini antenna interface

Size: 26*27*5MM

Positioning hole: R=1.524mm

Frequency: Quad-band 850 900 1800 1900 (available worldwide)

Support Unicom, Mobile

Main features:

1: Ultra-small size suitable for various cuff-type and embedded.

2: Self-ejecting card slot, convenient for replacing mobile phone cards. It can be placed on the side of the box to reserve

Replace the mobile phone card port.

3: Using IPX interface, the antenna can be replaced at will. Default PCB antenna

Greatly reduce: usage space.

4: The board uses a gold-plated board, which is more stable in terms of performance.

5: Regular wiring ensures that the board is more stable when running.

6: This module adds a protection device to prevent reverse connection and high voltage, reducing the loss of the board, which is suitable for projects and learning.

Product Photos