LOGITECH USB HEADSET 960 (981-000100)
$ 25.67
Microphone Type: Bi-directional Input Impedance: 32 Ohms Sensitivity (headphone): 111 dBSPL /- 3 dB Sensitivity (microphone): -42 dBV/Pa /- 3 dB Frequency response (Headset): 100 Hz – 10 KHz Frequency response (Microphone): 200 Hz – 6 KHz Connections: USB-A compatible (1.1, 2.0, 3.0)
1939 #E7 20c Special Delivery, First Day Cover (FDC). Brophey.
1936 5c UPU to Germany, shortpaid.
1936 5c UPU to Switzerland.
1937 Calgary to Kingston, Jamaica, 25c airmail
1936 12c registered drop letter.
1935 5c UPU to Belgium.