1) bluetooth 1.2 compliant 2) class 2 tx power 3) frequency:2.4ghz 4) channel:79 5) standby time:250 hours 6) talk time:6 hours 7) weight:11g 8) rechargeable li-polymer battery 9) working range: Indoor 5meters; outdoor 10 meters 10) dimensions:54 x 24 x 20mm We can provide bluetooth in many models, sample production is also available.