The lightweight and versatile Plantronics Voyager 510 Bluetooth Headset delivers all-day wearing comfort, clearer voice transmission and superior sound quality. With exclusive Multipoint Technology, your headset seamlessly transforms into a powerful communication solution for up to two Bluetooth devices. For the ultimate in wireless freedom, look no further than the Plantronics Voyager 510 Bluetooth Headset, which represents a generational leap in Bluetooth headset technology. The 510 is comfortable and light enough for all day wear, and it offers unprecedented clarity and sound quality. With Multipoint technology you can switch between your voice-enabled Bluetooth mobile phone, PDA or laptop. The headset's smart technology knows which device you are using and allows you to take calls from any device at the touch of a button. The 510 features a noise-canceling microphone for clearer conversations, and it folds for easy storage. The boom also swivels for perfect positioning on either ear. One-touch call control buttons are placed for easy access, and you can easily redial the last number dialed and initiate voice-activated calls from the headset. Because the 510 is Bluetooth 1.2 specification enabled, you can roam up to 33 feet from your Bluetooth device. Meanwhile, the 510 supports adaptive frequency hopping (AFH) which helps avoid interference from wi-fi networks. Ample talk time is provided by the built-in rechargeable battery.