The E75-2G4M10S is a RoHS compliant wireless module manufactured by Ebyte. It is a fully integrated low power Bluetooth 4.2 LE Class I transceiver module with an external antenna. The module features 2 Mbit/s (1 Mbps up, 1 Mbps down) data rate, up to 10 meter connection distance, fast Bluetooth connection and low power consumption. It has integrated regulation circuitry, a 32 MHz crystal oscillator, and a 5V power supply. The module is ideal for applications such as home automation, health care, industrial automation, automotive, energy monitoring etc. The E75-2G4M10S also has a built-in Bluetooth stack, making it easy to develop applications with its protocol stack. It supports various profiles such as serial port profile and GATT profile.