AUX Bluetooth 5.0 Adapter Car Bluetooth Receiver Transmitter 2-in-1 Wireless Audio

Product information: Bluetooth standard: 5.3 Operating Frequency: 2400 External power supply: no external power supply Whether plug and play: plug and play Interface: 3.5 Effective working radius: 10 Bluetooth version: 5.3 Bluetooth connection distance: within 10 meters Built-in battery: 200MAH, long battery life, with up and down volume control Plug and play, drive-free Bluetooth receiver/Bluetooth transmitter/hands-free call three-in-one Product size: 6 * 2.2 * 1.7 CM Transfer rate: 100