4-pin Crystal Head Telephone Monaural Call center headset phone headset
<br /> 
<br />Features:
<br />* Microphone noise abatement, real sound body aircraft operator
<br />* Screw headphone cable, avoid the use of the process wound
<br />* the use of flexible metal hose, MIC positioning accuracy, structural design, durable, comfortable to wear
<br />* 330  °  adjustable boom to ensure the best call quality
<br />* Hearing protection technology, care of the user's hearing
<br />* Test microphone boom rotates around 10,000 times
<br /> 
<br />Compatible with:
<br />Headsets for phone sales, telephone counseling services, insurance, hospitals, banks, telecom operators, enterprises etc...
<br />
<br />3Com:
<br />
<br />3102 &3103 Telephones
<br />
<br />Aastra:
<br />
<br />2465,2564, 480e,480i,,53i,55i,57i,57iCT,6753i,6755i,6757i, 9112i,9133i,9143i,9480i
<br />
<br />M4000, M4020, M5208, M5209, M5216, M5317,
<br />
<br />M7900, M8001,M8003,M9009,M9516,
<br />
<br />Powertouch 480/480e/480i Telephones
<br />
<br />,i2002,i2004, i2004IP(not compatible with i2400 phase II and i2004 POE phones)
<br />
<br />Alcatel-Lucent:
<br />
<br />4004,4020,4022,4035,4037 Telephones
<br />
<br />AltiGen phone Models:
<br />
<br />500,510,600,705,710,720
<br />
<br />Ascom:
<br />
<br />Berkshire 200, 400, 600, 800, SD30, MR30, MR51, MR61
<br />
<br />AVAYA / Lucent:
<br />
<br />6402D, 6408D+, 6416D+M, 6424D+M, 8403, 8410D, 8434DX
<br />
<br />4406D+, 4412D+, 4424D+, 4424LD+
<br />
<br />2410, 2420
<br />
<br />4610, 4620, 4621
<br />
<br />5410, 5420
<br />
<br />5610, 5620
<br />
<br />DT1, DT3, DT5
<br />
<br />Cable & Wireless:
<br />
<br />CWB 100H, CWB 200H, CWB 500, CWB 600
<br />
<br />Comdial:
<br />
<br />8312 8412
<br />
<br />Commander NT40:
<br />
<br />Commander NT Economy,Standard,Advantage, Principle
<br />
<br />Doro/Audioline
<br />
<br />AUB3MW, AUB6MW, AL505, Casino, Congress 100, 200, X50, Sim 200, Sensor 500, TEL15HS
<br />
<br />Ericsson
<br />
<br />Dialogue 4147, Dialogue 4186, MD110
<br />
<br />ESI:
<br />
<br />ESI-48-Key IP Feature Phone and 48-Key Digital Feature Phones
<br />
<br />General Electric:
<br />
<br />GE Telephone Model 2-9451, 2-9490
<br />
<br />GrandStream IP Phones:
<br />
<br />Budgetone 101,Budgetone 102
<br />
<br />GXP280
<br />
<br />Hybrex:
<br />
<br />DK1-21,DK2-21,DK3-21
<br />
<br />Intertel:
<br />
<br />8520, 8560, 8600, 8620, 8660, 8662, 8690
<br />
<br />Interquartz:
<br />
<br />Gemini, Gemini 9330-AV, Gemini 9335 CLI, Gemini 9335-AV, Gemini, Speakerphone, Enterprise Speakerphone, Enterprise Discovery, Interquartz 98380
<br />
<br />Iwatsu:
<br />
<br />IX 12KTD-3 and IX24KTD-3
<br />
<br />Lazerbuilt:
<br />
<br />Prestige 905K, 906K, 907K
<br />
<br />MITEL:
<br />
<br />Superset 4000 Series, Models 4015, 4025, 4125, 4150
<br />
<br />Mitel IP Series, Models 5000 IP, 5010, 5020, 5020i, 5040i, 5050, 5055 IP, 5055 SIP, 5140, 5201, 5207 IP, 5210 IP, 5212, 5215, 5220, 5224, 5230, 5235, 5240, 5550 IP 
<br />
<br />NEC:
<br />
<br />Electra Elite DTerm, Series E, Models DTU-8, DTU-8D, DTU-16, DTU-16D, DTU-32, DTU-32D, DPT-8, DPT-8D, DPT-16, DPT-16D, DPT-32, DPT-32D
<br />
<br />DTH-8,DTH-8D,DTH-16,DTH-16D,DTH-32,DTH-32D
<br />
<br />Dterm Series i
<br />
<br />Aspire
<br />
<br />NEC DT310,DT330,DT700,DT730,DT750 IP Phones
<br />
<br />DSX,DTL,DTP,DTR,DTU SERIES PHONES
<br />
<br />Nortel Networks (Northern Telecom):
<br />
<br />Meridian PBX: M3903, M3904, M3905, M2216, M2008, M2616
<br />
<br />Meridian Norstar: M7208, M7310, M7324, T7208, T7316, T7316E, M7900 M9516 M9009
<br />
<br />Nortel 3903, 3904, 3905
<br />
<br />Meridian Option M3110, 3310, 3820
<br />
<br />BT Converse 220, 225, 300, 320, 325, 420, 425, 1100, 1200, 1300, 1400, Paragon 450
<br />
<br />I2002,i2004(not compatible with i2400 phase II and i2004  POE phones)
<br />
<br />1210,1220,1230,2465,2564
<br />
<br />NT8B20,NT8B30,NT8B40,NT8B50,NTZK23AA,AB: (M2216):ACDI
<br />
<br />Orchid:
<br />
<br />DBT 2000, DBT 3000
<br />
<br />PLT:
<br />
<br />A100,S10,S11,S12,S50,T10,T20,T50,T100,T110
<br />
<br />SP-02,SP-04,SP-05,S50,A100,T50,T100,PLX-400 PLX-500
<br />
<br />Packet8 Phones:
<br />
<br />6753i,6755i,6757i
<br />
<br />Polycom:
<br />
<br />SoundPoint IP Phone Series, Models 300, 500 (rev. 5 or later), 550, 600, 650
<br />
<br />POLYCOM IP300,IP301,IP430,IP450,IP500,IP501,IP600&IP 601 IP Phones
<br />
<br />Safecom:
<br />
<br />SDSIP-500IP SIP Phones
<br />
<br />ShoreTel Phone:
<br />
<br />IP100,IP212K,IP230,IP265,IP530,IP560,IP560G,IP565
<br />
<br />Siemens/ROLM:
<br />
<br />Optiset E Series with CA or HA option modules
<br />
<br />Optiset E Advance
<br />
<br />Optiset Advance Plus+ Headset Adapter
<br />
<br />Comfort 300E+ Headset Adapter
<br />
<br />Comfort F300E
<br />
<br />Optipoint 410 Standard & Advance
<br />
<br />Optipoint 420 Standard & Advance
<br />
<br />Optipoint 500 Basic, Standard, Standard SL, & Advance& office
<br />
<br />Optipoint 600,Optipoint 600 Office
<br />
<br />OpenStage 40,40TDM,60,60TDM,80,80TDM Phones
<br />
<br />ROLM Phones with EHO option Module 612,624
<br />
<br />SNOM Technology:
<br />
<br />300
<br />
<br />Spring:
<br />
<br />Protégé models: 475716 475718
<br />
<br />TalkSwitch Phones:
<br />
<br />TS600
<br />
<br />Toshiba:
<br />
<br />DKT-3001, DKT-3010S, DKT-3014SDL, DKT-3020S, DKT-3020SD(MUST HAVE TOSHIBA BHEU ADAPTER  for on hook answering,sold by Toshiba,not available from us)
<br />
<br />Strata CIX,DP5022F-SD,DP5023-SD,DP5018-S, DP5000-Series
<br />
<br />Ulytel:
<br />
<br />Ulytel 1, Ulytel 2, Ulytel 5, Ulytel 4 (2-line)
<br />
<br />Uniden:
<br />
<br />420 and 450