GN 9350 is the ultimate example of wireless office headset functionality. For use with both traditional desk telephones and IP telephony, the dual connection GN 9350 always meets your needs.GN 9350 makes everything sound better. State-of-the-art Digital Signal Processing (DSP) technology removes impurities from the incoming signal, enriches sound quality, and maintains a safe consistent volume level. The GN 9350's sleek boom arm with noise-canceling microphone means your voice is transmitted clearly, even in noisy environments.When used with IP telephony applications, GN 9350 is the first wireless headset to provide wideband audio, with an astounding 6.8 kHz range – twice that of conventional telephony. With a market-leading range of up to 150 meters, you can roam your office to your heart's content, whilst a nine-hour, user-replaceable battery means you can talk around the clock.