Emaiker professional telephone headset with noise cancellation microphone with wideband speakers. Very endurable and comfort design for call center and office users. ?Hands free landline phone headphone with RJ9 4-Pins U10P-S QD cord for most of phones/IP phones. ?Flexible microphone boom arm with 330° rotation of selective wearing for left or right ear. Provide Hands-free Talking and Improve Work Productivity Emaiker over head headset with noise cancelling microphone allows you to use both hands for typing or taking notes while talking. Wearing a phone headset will make your hands free, and you don't need to hold your handset by your hands.The anti-static shock PCB ensures protection of hearing health of our users. This RJ9 headset with noise canceling mic is compatible with following IP Phones/Office Phones(Including but not limited) Akuvox :SP-R50P, SP-R52P, SP-R53P, SP-R55P,SP-R59P, SP-R55G, SP-R59G,SP-R63G, SP-R67G, VP-R47P, VP-R49G, R15P ATCOM:A10/A11,A16,A21,A26,A41,A48,A68,A10W,A20W/A20WAC,A41W,A48W/A48WAC,A68/A68WAC Cisco Unified IP Phones (no headset jack):7811,7902(G), 7905(G), 7906(G), 7910(G), 7911(G) & 7912(G) Dlink:DPH-150S Escene:GS330,GS292,CC800,ES620,ES410,ES330,ES320,ES310,ES290,ES282,ES280,ES220,ES206,ES205 Grandstream:GXP1200,GXP1400,GXP1405,GXP1610,GXP1625,GXP2020,GXP2100,GXP2110,GXP2120,GXP2124,GXP2130,GXP2140, GXP2160,GXP2170 Huawei:ET325,ET525 Sangoma:S300,S400,S500,S700 Sn: 320, 360, 370, 710, 720, 760, 820, 821, 870 Yealik:SIP-T19P,SIP-T20P,SIP-T21P, SIP-T22P,SIP-T23P, SIP-T23G, SIP-T26P,SIP-T27P, SIP-T28P, SIP-T29G, SIP-T32G, SIP-T38G,SIP-T41P,SIP-T42G,SIP-T46G,SIP-T48G,SIP-T21PE2,SIP-19PE2

Compatibility& Warranty: The telephone headset with mic work for Yealink SIP-T19P, T20P, T21P, T22P, T23P,T26P, T27P,T28P, T29G, T32G, T38G, T41P, T42G, T46G Grandstream GXP1200,GXP1400,GXP1405,GXP1610,GXP1625,GXP2020,GXP2100,GXP2110,GXP2120,GXP2124,GXP2130,GXP2140, Snom 320, 360, 370, 710, 720, 760, 820, 821 Escene,Huawei Akuvox, Sangoma(including but not limited) with RJ9 headset port. And 2 Years Warranty is offered for phone headset. Hearing Protection: emaiker corded desk phone headset with RJ9 jack, compete with Plantronics or Jabra heavy duty Headsets for call centers and office, with built-in hearing protection circuit to protect users against acoustic injury and sudden sound burst, any sound above 118db is filtered out, this telephone headset for office landline phones is ideal to people who are on the call all day long, such as call center agent, home phone job, telemarketing insurance, customer services etc. Luxurious Comfort: Call centers &office lightweight over ear telephone headset, wired desk phone headset is comfortable enough to wear for an extended period of time, no pressure on your head even for long time wearing. And adjustable headband fits for different head sizes and and flexible goose neck microphone boom offers accurate talking position. Phone headset one ear can be worn on either side and you can still communicate with your colleague while wearing it. GREAT DURABILITY: High-end materials and durable structure ensure the telephone headset to withstand the constant demands of all-day use in busy environments. The built-in reinforced quick disconnect cord will protect desk phone headphone against office chair wheels, sharp objects on daily use. Stainless steel headband, superior quality speaker and noise cancelling microphone, reliable plastic parts make this call center landline headset durable enough even for 24/7 busy environment. HD Sound Quality: The microphone phone headset is the over-the-head style telephone headset with mic for landline phones which is made for office workers, SOHO, work from home or call center agents. Wide band audio technology with communication speaker frequency enable phone headset delivering more richer and natural sound, plus ultra noise cancelling microphone to filter out background noise for clear 2-way communication.Professional call audio solution offers natural and clear hearing.