The　purpose　of　this　letter　is　to　report　a　new　optoelectronic　device　which　consists　of　a　wirelessly　controllable　driver　circuitry　and　a　slender　implantable　optical　probe.　Instead　of　the　conventional　silicon　substrate,　the　probe　is　based　on　GaN　material　growing　on　a　sapphire　substrate.　Thin-film　blue　micro　light-emitting　diodes　(mu　LEDs)　with　a　total　optical　power　density　of　176.9　mW/mm(2)　at　1　mA　are　directly　fabricated　at　the　probe　by　semiconductor　device　fabrication　technologies.　In　a　further　research,　we　integrate　a　yellow　mu　LED　on　the　probe　to　enable　optical　stimulation　of　both　excitatory　and　inhibitory　neurons.　Besides,　we　adopt　Bluetooth　4.0　wireless　communication　protocol;　therefore,　light　emitting　from　the　mu　LEDs　can　be　remotely　controlled　by　a　terminal　with　a　distance　as　far　as　20　m.　The　driver　is　also　equipped　with　an　accelerometer,　a　power　management　module,　and　a　system-on-chip　(SoC),　and　they　are　energized　by　a　rechargeable　lithium　battery　that　has　up　to　10-h　battery　life.　The　whole　device　is　a　little　bit　bigger　than　a　coin　and　weighs　approximately　6　g.　The　probe　has　a　length　of　1.65　cm　and　a　thickness　of　150　mu　m.　These　features　make　the　device　suitable　for　a　broad　variety　of　optogenetic　experiments.