Motorola MotoROKR T505 Bluetooth Car Speakerphone combines hands-free convenience with sophisticated Bluetooth wireless technology. If you have music on your Bluetooth phone with the A2DP profile (Advanced Audio Delivery) this device will allow you to play your music through your car stereo. And when a call comes in, music is interrupted as the T505 announces who's calling and music resumes when you hang up. The digital FM transmitter plays your calls and mobile music through your car stereo and features breakthrough StationFinder technology that locates crystal clear FM connections for you. The T505 can also be used to play music through your car stereo from an iPod or MP3 player if these devices are Bluetooth-enabled or are equipped with a Bluetooth adapter. Use the powerful internal speaker or get as much volume as you can handle by listening through your car's stereo. Make and take calls hands-free using the built-in microphone and speaker. For calls, the Speakerphone and FM transmission to the car stereo works with any Bluetooth-enabled phone including Samsung, Motorola, LG, Nextel, Nokia, Sony Ericsson and many others. In addition, music transmission to the car stereo works with any Bluetooth-enabled phone with A2DP as well as iPod and MP3 players with Bluetooth adapters.The clip simply hooks to your visor making the T505 totally portable. It provides up to 18 hours talk time using the FM transmitter and up to 330 hours standby time between charges and the vehicle charging cord is included. The device’s full duplex capabilities allow you to keep your hands on the wheel and your eyes on the road. You can now activate voice dialing, as well as answer or end calls effortlessly with a touch of a button. About the size of a hockey puck, the Motorola MotoROKR T505 is the ultimate stylish, compact and versatile solution for integrating your phone into your car.