HP Plantronics Headset SMH 1783-15, Dictation, ADA, JAWS, with Noise Canceling and M22 Vista amp

Supra has the perfect balance between a light weight, superior sound, and outstanding comfort Dual earpieces have a yoked double cable Binaural wired stereo headset that can connect to two different sound sources - 2 QD's on headset Voice tube Cord Length: 10 feet Bottom cords NOT included Frequency Range: 200-4kHz Output Impedance: <250 ohms All Special order items must be prepaid at the time they are ordered. Order will be placed with manufacture at the time payment is made.  There are no refunds or exchanges on special order items, all sales are final on special order items. Old part #91783-15, New HP part 8K7F7AA#AC3 ****PRODUCT DATASHEET