Cancelling Microphone Connectors Compatible Grandstream Review

ONE HEADSET FOR MULTIPLE DEVICES: This office headset comes with RJ9 and 3.5mm connectors for both landline desk phones, cell phones and PC laptops. With 3.5mm connector for iPhone Samsung PC laptop and most other Androids. With RJ9 connector works for Panasonic Grandstream for Yealink SIP-T21P SIP-T22P SIP-T23P SIP-T23G SIP-T26P SIP-T27P SIP-T28P SIP-T29G SIP-T32G SIP-T38G SIP-T41G SIP-T42G. HIGH QUALITY SOUND: Phone headset with noise cancelling microphone and HD audio sound ensure easy and clear communication for call centers, offices and home phones even in noisy environment. Wideband audio solution offers natural and clear hearing. Anti acoustic shock for hearing protection. SUPER COMFOTABLE HEADSET: RJ9 headset with super soft protein leatherette ear cushion,user-friendly hygiene, adjustable headband to fit for different head sizes, ear cover rotatable,no pain no push to ears for all day long wearing. Microphone arm 330 degree rotable for wearing mic on either side, super call center headset for telemarketing and offices. GREAT DURABILITY: Light weight and strong design, stainless steel headband, superior quality speaker and microphone, reliable plastic parts. Reinforced cord built with Kevlar to withstand demanding environment and protect against office chair wheels, sharp objects for daily heavy use. Compete with Plantronic and Jabra expensive for great value. COMPATIBILITY AND WARRANTY: We promise 60-DAY MONEY BACK AND 2-YEAR WARRNATY. Please check in Product Description for compatibility list(including but not limited). If you don't see your phone model listed or come to any issue with our headset, please contact us freely for compatibility guide and aftersale service. We will reply asap within 24hours.