Wi-linktech Communication Technology (Shanghai) Co., Ltd. has developed the dual-mode Bluetooth smart speaker.
By combining TI’s dual-mode Bluetooth chip with the customized dual-mode Bluetooth protocol stack owned by WLT, we provides a dual-mode Bluetooth smart speaker solution.

Supporting all kinds of Bluetooth audio functions: Music playback (A2DP), telephone (HFP / HFP Gateway), AVRCP1.6 and so on, Line IN / Line OUT, analog / digital audio input and output.

Supporting dual-mode data: SPP / BLE data and Apple certified MFI.

Technical support and customization: Bluetooth software’s functions and hardware backplanes can be customized.

Functions of WLT2564M dual-mode Bluetooth module:

√ Supporting Bluetooth BR / EDR / LE (BR / EDR mode and BLE mode can run at the same time without disturbing each other)

√ Supporting audio protocols like SPP, BLE, A2DP, AVRCP, HFP and so on

√ Supporting transparent / protocol data transmission, providing AT + instruction set configuration
√  Supporting multi-channel analog / digital audio input and output
√  Onboard high-performance 2.4GHz ceramic antenna, with external antenna as an option

 √ 3.35 ~ 4.2V single power supply 

Some typical successful examples:

√ Marshall (British) professional guitars’ speakers
√ iShower bathroom speakers and Bluetooth speaker lights whose color changes with mood

Function Block Diagram

Design Schematics