[2021Upgraded] Bluetooth 5.0 Transmitter/Receiver for Car/TV,2-in-1 Portable Aux Bluetooth Adapter with Screen,AUX Stereo/Bluetooth Audio Receiver for Home/Headphones/Hands-Free Call/Gym

Warm tips   1.Do not use this product in a dusty and humid environment with extremely high and low temperatures. 2.Do not drop the product to avoid surface damage or breakdown. 3.Do not disassemble the product,if you have any questions, please contact us. 4.This product has a built-in lithium battery and cannot be stored for a long time; to avoid over-discharge of the battery; suggestion: charge and discharge at least once every 3-6 months. 5.It (RX mode or TX mode) will automatically shut down if without any device connection or any operations within 5 minutes.Long press inchPower Button inch 4 seconds to power on. Packaging     1.Manual        2. Main device 3.Audio cable 4. Micro-USB Charging cable Troubleshooting No response to power on: 1.Toggle the RX-TX key and long press the power button again or 2.Plug in the charging cable to charge the product for 5 minutes before turning it on