E73 Pro Journey AUX BT audio receiver/transmitter

1, Size: 34*59*13mm; weight: 23g
2, Bluetooth 5.0; chip: JL AC6956
3. Battery: 250mAh; Standby time: 200 hours; Charging about 2 hours
4. Working time: 10 hours in RX mode; about 8 hours in TX mode
5, 3.5mm plug.
6, AUX – Bluetooth audio integrated transceiver, easy one-key switching