BT4842B Bluetooth V5.0+EDR Wireless Bluetooth Transmitter Receiver Adapter Stereo Audio Music Adapter with 3.5mm Audio Cable (Black)

product description 1. BT4842 is a Bluetooth music adapter developed and designed for Bluetooth receiving and transmitting. 2. The product adopts the module design of CSR8670 chip the high-end integrated chip makes the product have one drag and two lossless sound quality strong compatibility low power consumption etc.; on the basis of analog audio interface increase the optical interface digital audio decoding can be high-end 3. The optical fiber interface of the audio appliance is connected. Performance parameters: 1. Main chip CSR8670 2. Bluetooth Specifications Bluetooth 5.0+EDP 3. Support Bluetooth protocol A2DP AVRCP 4. Receive connection 2 5. Launch connection 2 6. Working voltage DC 3.0-4.2 V 7. Working current about 23mA 8. Working time about 20H 9. Built-in lithium battery 450mAH 10. Wireless transmission range >10 meters 11. Transmission power CLASS2 12. Frequency range 2.4GHz-2.480GHz 13. External interface 3.5 audio plug fiber interface MK USB plug 14. Product siz