Bluetooth module for blon bl01

I gave a friend of mine my blon bl01’s recently and she enjoys the sound quality compared to the comes with phone type earbuds she’s been use to. However, she wants to not have it be wired and I believe fiio makes Bluetooth modules that can replace the iem cable? Would the connector of these fit the blon’s or is there any of these kinds of Bluetooth adapters that would fit a blon?