It is connected with the main speaker through smartphone, and then the main speakers connect s with the slave speaker via a Bluetooth wireless mode connection, to achieve true wireless Bluetooth for left and right channels separated of Bluetooth speaker.The program based on CSR Bluetooth4.0 with dual-mode module development. When not connected to the speaker, the main speaker stereo back monomers. It is no delay, and good sound quality. Designed to provide customers with stable performance characteristics of high-end Bluetooth loud speaker programs. It need 2 pcs Bluetooth modules with TWS function to realize it as below.
1. Apply to: high-end Bluetooth stereo speakers
2. Bluetooth module: CSR8670, CSRA64000 series Bluetooth 4.0 dual-mode
3. Bluetooth protocol: music playback (A2DP), streaming media control (AVRCP), Handsfree (HFP), serial data transmission (SPP), etc.
4. Functions: on / off, volume control, pause / play, previous song, next song, incoming calls, call transfer, call reject, redial the bottom, hang up, etc.
5. Additional features: UART data communication, display power in iphone mobile phone, caller ID, phone book synchronization, mobile phone anti-lost (no extra cost), call echo cancellation (CVC) APT-X audio formats to cable (registration) (need to pay an additional license fee)
6. Special features: 6 touch control keys
7. The input and output functions: analog audio, PCM digital synchronization, I2S, SPDIF, HDMI, optical fiber, etc.