SUPERB SOUND: Arama phone headset enhanced voice clarity technology enables natural listening experience. Noise cancelling microphone reduce background noise. The mic boom is adjustable to pick up your voices loud and clear. LONG HAUL COMFORT: Ultra lightweight telephone headset with adjustable headband to fit all head sizes. Soft and high quality ear cushion enhance all-day wearing comfort. EASY TO USE: Large volume control & mute switch provide extra convenience while conversations. 2.5mm headset is ideal for Call Center Service, Conference Calls, Telemarketing, Home and Office. ULTRA DURABLE: Telephone headset is designed with solid structure and sturdy material, which ensure the super performance and make it durable. 5.3ft long telephone headset's cord offers flexibility to move around. 2.5MM PHONE HEADSET: Plug and play easily with Panasonic Cisco SPA Grandstream Polycom Clarity Home Office Landline Phones and most Cordless Dect Phones with standard 2.5MM HE