Product Features:
Microphone noise abatement, real sound body aircraft operator.
Screw headphone cable, avoid the use of the process wound.
Flexible metal hose, MIC positioning accuracy, structural design, durable, comfortable to wear.
Adjustable boom to ensure the best call quality.
Hearing protection technology, care of the user's hearing.

Compatible Use for:
phone sales, telephone counseling services, insurance, hospitals, banks, telecom operators, enterprises etc.
Nortel Networks (Northern Telecom):
Meridian PBX: M3903, M3904, M3905, M2216, M2008, M2616
Meridian Norstar: M7208, M7310, M7324, M7900, M9009, M9516, T7208, T7316, T7316E
Nortel 3903, 3904, 3905
Meridian Option M3110, 3310, 3820
BT Converse 220, 225, 300, 320, 325, 420, 425, 1100, 1200, 1300, 1400, Paragon 450
I2002, i2004 (not compatible with i2400 phase II and i2004 POE phones)
1210, 1220, 1230, 2465, 2564
NT8B20, NT8B30, NT8B40, NT8B50, NTZK23AA, AB (M2216), ACDI
Packet 8 Phones: 6753i, 6755i, 6757i
Polycom:
SoundPoint IP Phone Series, Models 300, 301, 335, 500 (rev. 5 or later), 550, 600, 601, 650
POLYCOM IP300, IP301, IP430, IP450, IP500, IP501, IP600 &IP601 IP Phones
Safecom: SDSIP-500IP, SIP Phones
ShoreTel Phone: IP100, IP212K, IP230, IP265, IP530, IP560, IP560G, IP565

• Call Service Headset with Adjustable Boom Mic 4-pin RJ9 Modular Connector for Telephone /IP Phone
• 4-pin RJ9 Modular Connector, Adjustable Boom Mic
• Nortel Networks (Northern Telecom) Meridian PBX: M3903, M3904, M3905, M2216, M2008, M2616, Meridian Norstar M7208, M7310, M7324, M7900, M9009, M9516, T7208, T7316, T7316E, Nortel 3903, 3904, 3905, Meridian Option M3110, 3310, 3820, BT Converse 220, 225, 300, 320, 325, 420, 425, 1100, 1200, 1300, 1400, Paragon 450, I2002, i2004 (not compatible with i2400 phase II and i2004 POE phones), 1210, 1220, 1230, 2465, 2564, NT8B20, NT8B30, NT8B40, NT8B50, NTZK23AA, AB (M2216), ACDI
• Packet 8 Phones 6753i, 6755i, 6757i, Polycom SoundPoint IP Phone Series, 300, 301, 335, 500 (rev. 5 or later), 550, 600, 601, 650
• POLYCOM IP300, IP301, IP430, IP450, IP500, IP501, IP600 &IP601 IP Phones, Safecom SDSIP-500IP, SIP Phones, ShoreTel Phone: IP100, IP212K, IP230, IP265, IP530, IP560, IP560G, IP565

Call Service Headset with Adjustable Boom Mic 4-pin RJ9 Modular Connector for Telephone /IP PhoneSUNDELY