- SIM800H (LGA world’s smallest quad-band GSM / GPRS module, equipped with quad-band antenna universal)
- Operating voltage: 3.4-4.4V (current peak 2A), Vbat power input can also use lithium battery.
- Module size: 2.5cmx2.2cm
- Patch welding machine performance and stability
- Including GSM Antenna & Bluetooth antenna
- See wiki page how the bluetooth wiring and working proof.