Telephone headsets in comparison

Upgraded Version Headset telephone: a BT Plug - RJ11 Socket Adapter (to transfer from RJ11 to BT connector is included. It is a desktop headet telephone for landline phones in office and home business in the USA and Europe. Compatible with most of call center telephone equippment and digital telephone service. It also can be in home on a regular phone jack. Receiving call, making call, reviewing, calling back and deleting incoming numbers. Easy to Set ;There is no special equipment to set this phone up, and it will comes with an English manual. Comfortable blue backlight caller ID display with the best viewing angle, automatic checking of FSK/DTMF, 30 incoming, 5 outgoing number memories. It has the basic features of a landline telephone headphones,and does not have to be merged with other phones: Flash, Mute...and it runs solely on a land line. No need batteries. Headset speaker volume control by knob. Flash time 100ms or 600ms choice. The headset is fully adjustable and fits very comfortable; Provides all day comfort, clarity and durability, Superior quality sound with the flexible adjustable noise cancellation microphone.

RJ9 TELEPHONE HEADSET(NOT for Cell Phones & Computers): Direct-connect Landline Telephone Headset is ONLY Compatible with Some Specific Phone Models from AVAYA, Aastra, Mitel, ShoreTel, NEC, Fanvil, Polycom SoundPoint 300 301 335 430 450 500 501 550 600 601 650 670 CX300 CX500 CX600 CX700 VVX300 VVX310 VVX400 VVX410 VVX500 VVX600 VVX1500 and more.

Noise Cancelling - The call center headset comes with noise cancelling function to keep background noise outside to create a clear communication.

Superior stereo sound: high precision 50mm magnetic neodymium driver carries a higher sensitivity and strong frequency sound, resonating bass offers a full range-listening experience bring you vivid sound field and shock feeling sound.

WIDE COMPATIBILITY: MAIRDI telephone headset includes RJ9 jack and 3.5mm jack, allowing one office headset for multiple devices.

CISCO HEADSET: This corded telephone headset with microphone is specially designed for Cisco office phones with RJ9 headset jack, such as Cisco 6841, 6851, 6921, 6921, 6945, 6961, 7821, 7841, 7861, 7931G, 7940, 7941, 7941G, 7942G, 7945, 7945G, 7960, 7960G, 7961, 7961G, 7962G, 7965G, 7970, 7970G, 7971, 7971G, 7975, 7975G, 8811, 8841, 8845, 8851, 8861, 8865, 8941, 8945, 8945G, 8961, 9951, 9971 Crystal Clear Chat: With wideband audio technology and industry-leading noise cancelling microphone, this telephone headset for Cisco phones delivers crystal clear sound.

【Leading Noise Canceling Technology】TECKNET bluetooth wireless headset with microphone can block 99.8% of background noise, so you can hear clearly wherever you are. The sound quality on both sides is excellent, and the people you are talking to can't hear background noise.

Most Comfortable Headset: Super lightweight 3.5mm cell phone headset with adjustable headband to fit all head sizes, high quality and soft leatherette ear cushion enhance all-day wearing comfort.

【Clear Stereo Sound】This laptop headset with microphone with a built-in sound card enabled the newest unidirectional noise-reduction tech aims to improve voice clarity and to achieve lossless and crystal sound.

Universal - The BT Accord 20 will fit most types of corded telephones and telephone systems thanks to the supplied configuration switch.

【Compatible List for Polycom IP Phones】Landline telephone headsets with RJ9 jack work for polycom VVX101 VVX201 VVX301 VVX401 VVX501 VVX601 VVX150 VVX300 VVX310 VVX311 VVX330 VVX400 VVX410 VVX411 VVX500 VVX600 VVX1500 SoundPoint 300 301 335 430 450 500 (rev. E or later) 501 550 560 600 601 650 670 CX300 CX500 CX600 CX700.

MADE FOR ERICSSON-LG iPECS – Supplied with the QD002P direct-connect RJ9 lead, which plugs straight into the headset port.