I bought a few of these with the intention of making a few Bluetooth mouse projects, since it's stated that it has HID functionality: "Bluetooth Profile HID v1.1 SPP v1.2." Serial mode works. So that part is great, but not the part I needed. I messaged the seller a week ago, letting him know that I had been unable to get HID mode working and asking how it was supposed to be enabled. He quickly responded, saying he would try to get that part figured out and get back to me.
If anybody can help figure this out, that would be awesome too so I could change my review :)