Yes, wired headset and Bluetooth accessories purchased from GRID are compatible with these handsets. GRID does not recommend or endorse the use of other 3rd party Bluetooth accessories which are not purchased from GRID due to potential compatibility issues with our handsets and the pre-installed native applications (Bluetooth accessories are subjected to availability from 3Q 2020. GRID will not be held responsible for any damages or claims of the handsets that arise from the use of 3rd party accessories not purchased from GRID.