Feature:1. [CSR Chip] BT 5.0 adapter adopts CSR8675 high end chip design, CSR latest ANC noise reduction technology.2. [Support Dual Stream (TX Mode)] Transmitter supports connecting 2 speakers or headphones at the same time. (using the same CODEC)3. [Free Switch Interface] Wireless receiver transmitter SPDIF, I2S input or output interface, freely switchable.4. [Support Format] HiFi lossless BT wireless adapter supports for SBC, ACC, aptX HD, aptX LL, aptX formats.5. [Drive Free] Wireless transmitter is simple to connect, without any cumbersome driving and downloading APP.How to Use:Connect and use.Specification:Item Type: 2 in 1 BT AdapterMaterial: ABSModel: B20BT Chip: CSR8675BT Version: BT V5.0Transmission Distance: >10m / 33ftBT Protocol Support: RX: A2DP AVRCP TX: A2DPInput and Output Connection: SPDIE, 3.5mm CODEC: TX: aptx HD, aptx Low Latency, aptX, for SBCRX: aptx HD, aptx Low Latency, aptX, for SBC, ACCWorking Time: RX＞18H TX＞22HCharging Method: Micro USB 5V/0.5ABattery Type: 600mAh Li ion battery (built in) Package List:1 x Adapter 1 x Digital Fiber Optic Cable 1 x 3.5mm Cable1 x Cable1 x USB Charging Cable1 x Manual