Bluetooth modules FSC-BT836 from Feasycom have been chosen over other modules on the market because of the quality, functionality and price point.
FSC-BT836,Dual mode BT4.2 ,SPP+BLE+HID .MFI(Optional).
Please see below for more information and ensure that you read the manual for your chosen a module for your application.
Bluetooth 4.2/4.1/4.0 support
Class 1.5 (signal power up to +4dBm)
Profiles including HID+SPP+BLE
Built-in ceramic chip antenna, external antenna optional
Connection status LED indication
Works with: Android – YES; iOS – YES
For maximum Bluetooth signal efficiency for both modules follow these rules:
Place BT module as far from Negative (GND) wires and battery as possible
Place BT module as far from the speaker as possible
Place BT module under some holes in the hilt or plastic parts around antenna