20cm 3.5mm OMTP Smartphone Headset to 4P4C RJ9/RJ10-Black

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Specifications:
This amazing adaptor converts the standard 3.5mm smartphone plug to an for Aastra RJ9, RJ10, or RJ22 handset plug, allowing you to use your favorite smartphone headset with your for Aastra office phone.
The adapter outputs binaural sound for stereo headsets, meaning you will hear sound out of both ears.
Convert 3.5mm OMTP smartphone plug to single 4P4C RJ9/RJ10 handset/headset plug.
Save money by buying a smartphone headset, or using your existing one with your office phones headset jack.
This adapter will not work with for Apple EarPods and other CTIA based headsets.
Works best when paired with an amplifier.
For optimal use, please plug into the headset jack on your phone. The handset jack usually causes audio distortion.

Compatibility:
This list is not all inclusive. Updated 3/1/17.
Incompatible Phones:
For Avaya 1100, 1200, 1600, 2000, 4600 and 9600 Series
For Cisco 7902, 7905, 7910, 7911, 7912, 7920, 7921
For Nortel 1140T and Visa 350
For Polycom Phones
For Shortel IP 230
For Uniden Dect2088, TRU9496
For Western Electric 6250

Incompatible Headphones:
For Apple EarPods.

Compatible Phones:
For Aastra/Packet8/8x8 480e, 480i, 53i, 55i, 57i, 57iCT, 6753i, 6755i, 6757i, 9112i, 9133i, 9143i, 9480i
For Allworks 9212
For AltiGen IP Phone 500, 510, 600, 705, 710, 720
For Avaya 4500 Series IP
For ESI 48-Key IP Feature Phone and 48-Key Digital Feature Phone
For GE Model 2-9451
For Inter-Tel
For Lucent 8410D
For Mitel IP 40XX, 41XX, 5000, 50XX, 5140, 52XX, 53XX, 5550
For NEC Dterm Series E
For Norstar T7316E, M3904
For Nortel IP 1120E IP, 1140E IP, 1150E IP, 1230, i2002 and i2004
For Nortel Meridian Norstar Northern Telecom
For Panasonic Hybrid
For Plantronics T10
For Possum Sero
For Shoretel ShorePhone IP Models
For Siemens
For Splicecom PCS 520
For Talkswitch IP Phone, TS-600
For Toshiba
For 3COM 3102, 3103

Compatible Amplifiers:
For Plantronics S-12, M22, A20, MX10, TSB, AP15

Item Name: 3.5mm to RJ9 Cable
Length: 20cm/7.87" (Approx.)

Notes:
Due to the light and screen setting difference, the items color may be slightly different from the pictures.
Please allow slight dimension difference due to different manual measurement.

Package Includes:
1 x 3.5mm to RJ9 Cable