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- Comes with a in-line 2 modes (3 wire sequence for each mode) switch, compatible with most landline, VOIP and SIP phones with RJ9 4-pin modular connectors, good for using in business office customer service, conference calls, phone sales, call center, telephone counseling services, insurance, hospitals, banks, telecom operators, enterprises, etc.
- Single-ear hands-free design, Bendable and 330° rotatable noise-cancelling microphone arm can be adjusted to any talking position, In-line mic mute switch and volume control knob, Soft leatherette ear cushion comfortable for all-day wearing, HD speaker with crystal clear sound quality reception
- Easy to use, plug-and-play, if you cannot hear or be heard, please set the mode on the switch block, try each of the line sequence "Channels" until you get clear sound from the headset
- Compatible Landline Telephone Models: Replacement for Aastra 6731i; Replacement for AT&T CL2940 CL2940BK; Replacement for Avaya 1408, 1416, 1608, 1616, 2410, 4610, 5410, 5621, 6408D+, 9504, 9508, 9608, 9608G, 9611G, 9620L, 9641G, 9650C; Replacement for Cisco (CIS) 6000 series, 6841, 7800 series, 7821, 7841, 7911, 7940, 7941, 7942, 7945, 7962, 7965, 7965G, 7975, 8841, 8845, 8851, 8861, 8865, 8945
- Compatible Landline Telephone Models: Replacement for Clarity E814cc; Replacement for ESI 40sbp; Replacement for Digium D62; Replacement for Grandstream GXP1625, GXP1630; Replacement for Intecom ITE 12SD; Replacement for Inter-Tel 8520; Replacement for NEC Aspire, Dterm, DT300 series, ILV series, etc.
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