I purchased this headset specifically for use with my Nokia 3650 (as advertised above).However, the unit I received is *not* compatible with the the Nokia 3650. The number near the microphone indicates that this unit does not support the Nokia 3650 (the number should be 19B, not 05B as is on my unit).Jabra will swap the unit (at no additional charge) for one that is compatible - however, you will have to pay delivery charges to Jabra in California.