Ooma Wireless Plus Bluetooth Adapter Works only with Ooma Telo. Not for use with other devices. Ooma Wireless + Bluetooth Adapter enables your Ooma Telo to connect to the Internet wirelessly using your Wi-Fi network. Listen to voice mail and engage advanced features where it is most convenient. Take your Telo with you when you travel to call for FREE wherever you have Wi-Fi. Pair up to 7 Devices - Pair up to 7 mobile phones or Bluetooth headsets. Transfer Calls - If you're using the Telo handset, you can transfer your call to your Bluetooth headset and be hands-free. Use your Bluetooth earpiece to talk on your home phone with up to 30-Feet of transmission range. Multiply your Ring - Add the convenience of answering your mobile phone calls on any phone in your home. Listen to voicemail and engage advanced features where it is most convenient. Install Ooma in dorm rooms, apartments, and other locations without a wired Internet connection. ( User Guide - Troubleshooting information is on pages 9 to 10)