If you are experiencing unexpected issues such as short work range, audio cutting in and out, not pairing, etc. you may need to clear the paired history of the HT5009 headphones and transmitter.
Clear paired history of the transmitter:
Press and hold the and buttons together for 7 sec until you hear voice prompt “Pairing history cleared”, Right after that, Green and White LED will flash rapidly together, indicating Oasis Plus entering pairing mode again. TX history is cleared.
Clear paired history of the headphones: After turning on, press and hold both “+”and”-“ for 10 seconds until the LED turns PINK - now the pairing history of the headphone has been cleared, it will enter pairing mode automatically with the LED flashing alternately RED and BLUE.