The Zoom Bluetooth adapter plug into a laptop computer or PDA to provide a wireless connection to another Bluetooth-enabled device, such as a modem, mobile phone, headset or peripheral.The Model 4312AF is a Bluetooth version 2.0 PC Card adapter with speeds up to 3Mbps; it plugs into the PC Card slot of a Windows computer. The 4312AF is Bluetooth 2.0 + EDR compliant, support the newest Bluetooth multi-media profiles including A2DP, and are RoHS Lead-free. The Model 4312AF implement the Bluetooth Piconet protocol which support concurrent connections with up to seven other Bluetooth devices.