• Adopt CSR8675 high-end chip design

• CSR's latest ANC noise reduction and echo cancellation technology

• Support TX dual stream, RX multipoint connection

• SPDIF, I2S audio input / output interface, freely switch

• Built-in rechargeable battery, battery life is greater than 20H

• Support SBC, MP3, AAC, apt-X HD, apt-X LL, apt-X audio formats

• 16Mb of built-in eFlash and up to 64Mb of external serial flash memory, digital-to-analog conversion signal to noise ratio of up to 75dB

• Support TWS (left and right channel separation)

• Simple connection, no tedious driver and APP download

• Note on using APTX: apt-X HD CODEC is preferentially supported for single connection (the connected device must also support apt-X HD), if it is dual connection, it will automatically switch to SBC CODEC.
  

Specification:

• Material: ABS black rubber oil process

• Bluetooth version: V5.0

• Support agreement: RX: A2DP AVRCP TX: A2DP

• Working frequency band: 2.402GHz-2.480GHz

• Power level: Class II

• Sensitivity: -80dBm <0.1% BER

• Signal to noise ratio: ≥75dB

• Distortion: ≤0.1%

• Support Dual stream (TX mode): support (one transmitter is connected to two Bluetooth speakers or headphones at the same time use a CODEC)

• Support multipoint connection (RX mode): support (connect two mobile phones)

• Codec: TX: apt-X HD, apt-X LL, apt-X, SBC; RX: apt-X HD, apt-X LL, apt-X, SBC

• Working current: <28mA

• Built-in battery: 600mAh

• Charging current: about 200mA

• Charging time: about 3 hours

• Life time: RX about 22H, TX about 26H

• Bluetooth distance: >10M (open space)

• Charging method: Micro USB 5V / 0.5A

• Input / output connection: SPDIF interface, I2S AUX interface

• Compatible: Android, iOS system phones and PAD, and Bluetooth speakers or headphones that support A2DP protocol