VoiceJoy 2.5mm Phone Headset w/Noise Canceling Boom Mic in-line Volume Mute-Switch for Panasonic Cordless Phones and Grandstream Polycom Cisco Linksys SPA Panasonic Gigaset ATandT

Description:
VoiceJoy 2.5mm Monaural Telephone Headset is a headset designed for call center. It is Compatible for the most 2.5MM telephones. With flexible goose neck Mic boom, adjustable headband and soft ear pad, users will have comfortable wearing experience.

Features / unction characteristics:
Hands-free 2.5mm Headset
High clear voice communication
Compatible for most telephones in call center
150ohms speaker to ensure perfect voice quality
Headset head can freely telescopic, moderate elasticity, comfortable to wear
Super soft ear cushions make sure comfortable wearing
High durability, fully adapt to 7 x 24 hours for high frequency

Specification:
Color: Black
Microphone type: electrical condenser microphone(ECM)
Microphone voltage: 2.0v
Receiver impedance: 150??10 ohm

Package:
1 * 2.5mm Headset
1 * User manual

The 2.5mm plug is for Phones:

Cisco Linksys: CIT200, CIT300, CIT310, CIT400
Cisco SPA303, 501G, 502G, 504G, 508G, 509G, 525G 512G 514G,525G
Cisco Linksys SPA921, SPA922, SPA941, SPA942, SPA962 models
Polycom IP320, IP321, IP330, IP331, SoundPoint Pro SE-220 SE-225
Grandstream GXP-2010, GXP-2020, GXP-2100, GXP-2110, GXP-2120, GXP-280, GXP-285, BT200, BT201 GXP-2000(Version 1.0 higher with 2.5mm Headset Socket)
Panasonic KX-NT136, KX-NT343, KX-NT346, KX-NT366 ,KX-T 7603, KX-T 7625, KX-T 7630, KX-T7633, KX-T 7636, KX-T 7730, KX-T 7735
Gigaset C610 IP, C620H
Zultys Technologies: ZIP 4x4, ZIP 4x5 IP Phones
Plus Many Many Cordless Phones with standard 2.5mm Headset jack.