Does the SatSleeve main unit have its own microphone and speaker? March 12, 2019 /Posted byAcacia Satlink Limited / 0 Yes, the SatSleeve unit comes with its own microphone and speaker, which can be used when using the SatSleeve unit in SOS mode or with Wi-Fi off, without the smartphone connected. Thuraya Land VoiceThuraya SatSleeve+ – Transform Your Smartphone into a Satellite Phone. Shop now Share Post How long does the battery last... How can I turn off Wi-Fi to sa...