B38 2 in 1 Bluetooth 5.0 Audio Adapter Transmitter Receiver with OLED Display Support Optical Fiber & AUX

Features: 1. With OLED display APTX LL HD AUX AAC RX TX and other functions are defined and displayed directly 2. ANC noise reduction and echo cancellation technology 3. Support TX dual stream RX multi-point connection 4. SPDIF I2S audio input/output interface can be switched freely 5. Built-in rechargeable battery battery life is more than 20 hours 6. Hands-free call one-click answering of incoming calls 7. Support SBC MP3 AAC apt-X HD apt-X LL apt-X audio formats 8. 16Mb built-in eFlash and up to 64Mb external serial flash memory digital-to-analog conversion signal-to-noise ratio is up to 75dB 9. Support TWS (left and right channel separation) 10. The product connection is simple without any cumbersome driving and downloading APP Product specifications: 1. Bluetooth chip: CSR8675 2. Bluetooth version: Bluetooth V5.0 3. Built-in battery: 500mAh 4. Audio performance: APTX/APTX LL/APTX HD/AAC/SBC 5. Bluetooth distance: more than 10m (open place) 6. Charging method: M