Is this not possible when the peripheral is an iOS device? Thanks, Zsombor _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists.... This email sent to site_archiver@lists.apple.com Can an iPhone4S running iOS6 and acting as a peripheral include the Tx Power Level in its BLE advertisement? It seems to me that the WWDC 2012 Session 705 implies that it can, but I can't figure out how. It is not included by default, and the documentation of CBPeripheralManager states that the only supported advertisement data types I can pass to startAdvertising are CBAdvertisementDataLocalNameKey and CBAdvertisementDataServiceUUIDsKey. I tried to set a (dummy) value for CBAdvertisementDataTxPowerLevelKey but it was ignored. And even if I could set a value for this key, I don't know where to get the actual value from.