Callez Polycom Phone Headset with Noise Cancelling Microphone, RJ9 Telephone Compatible VVX250 VVX310 VVX311 VVX350 VVX401 VVX410 VVX411 VVX450 VVX500 Office Landline Phones

【Compatibility for Polycom Phones】:The telephone headsets for office phones compatible with Polycom desktop phones VVX411 VVX410 VVX400 VVX401 VVX450 VVX500 VVX501 VVX601 VVX600 VVX650 VVX300 VVX310 VVX311 VVX330 VVX250 VVX350 VVX101 VVX201 VVX301 VVX150 VVX1500 CX300 CX500 CX600 CX700 SoundPoint 300 301 335 430 450 500 501 550 560 600 601 650 670, etc. NOT for Polycom IP320, IP321, IP330, IP331, SoundPoint Pro SE-220 SE-225. 【Clear Audio & Hearing Protection】: Featuring dynamic speakers and wideband audio technology, it ensures clear sound transmission. Experience natural audio reproduction for both incoming calls and outgoing speech, enhancing communication efficiency in professional business settings. The office phone headsets have Acoustic Shock to protect the circuitry and your hearing. 【Noise Cancelling Microphone】: This telephone headphone for Polycom desk phones with an advanced noise cancelling boom microphone that filters out background noise, ensuring your voice sounds crisp and clear. Ideal for busy call centres, customer support agents, and working from home environments where focus is key. 【Highly Comfortable Headset】： Engineered for heavy-duty use, this lightweight wired phone headset for call centre features soft, leatherette ear cushions and an adjustable headband. The ergonomic design reduces pressure on the head and ears, making it perfect for telemarketers, receptionists, and operators working long 8-hour shifts. 【Warranty & Note】: 45 days easy returns & 24-month worry-free guarantee. Professional dual-ear telephone headset with 4-Pin(4P4C) RJ9 Headset jack, Plug and Play, no additional amplifiers or adapters required. NOT FOR CELL PHONES AND COMPUTERS. Furthermore, it is not compatible with all Cisco Yealink Panasonic and Grandstream Phones. If you do not find your phone models in the compatibility list, please contact us for compatibility guide before purchasing.