2.5MM PHONE HEADSET & 2 Year Warranty : Plug and play. Easily with Panasonic AT&T Uniden Cisco SPA Grandstream Polycom Home Office Landline Phones and most Cordless Dect Phones with standard 2.5MM HEADSETJACK. FOR MORE PHONES, PLS SEE COMPATIBLE PHONE LIST IN DESCRIPTION. Arama provide 45-day free replacement and 2 years warranty. ULTRA DURABLE: Arama Telephone headset is designed with solid structure and sturdy material, which ensure the super performance and make it durable. Precision design, quality plastics, unibody headband construction, precision one-piece headband structure design ensures strong performance and long life of this deskphone headset. EASY TO USE: Large volume control & mute switch provide extra convenience while conversations. 5.3ft long telephone headset's cord offers flexibility to move around. 2.5mm headset is ideal for Call Center Service, Conference Calls, Telemarketing, Home and Office. ALL-DAY COMFORT: Ultra lightweight telephone headset with adjustable headband to fit all head sizes. Soft and high quality ear cushion enhance all-day wearing comfort. 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.