I n t r o d u c t i o n5© 2007 Nokia. All rights reserved. 51. IntroductionWith the Nokia Bluetooth Headset BH-702 you can make and receive callswhile on the move and use your mobile device hands free. You can use theheadset with compatible devices that support Bluetooth wirelesstechnology.Read this user guide carefully before using the headset. Also read the userguide for your mobile device, which provides important safety andmaintenance information. Keep the headset and its accessories out ofreach of small children.■ Bluetooth wireless technologyBluetooth wireless technology allowsyou to connect compatible deviceswithout cables. A Bluetooth connectiondoes not require that the mobile deviceand the headset be in line of sight, butthe maximum distance between thedevices is 10 meters (33 feet). The closerthe mobile device and the headset areto each other, the better is theperformance. The optimal operatingrange is shown in dark grey in thepicture. The connection is subject to interference from distance andobstructions (shown in light grey) or other electronic devices.<10m