4O3A NC-1 Noise Canceling Bluetooth Boom Mic Headsets

4O3A NC-1 Noise Canceling Bluetooth Boom Mic Headsets are top-of-the-line Headphone Boom Microphone combinations that are designed primarily for contesting, but also work perfectly for everyday use. The NC-1 are light and comfortable over-the-ear headphones that makes using them a truly enjoyable experience. With advanced Bluetooth capability, amazing audio reproduction and external and built-in microphones, this is also an excellent multi-purpose headphone for mobile phone and multimedia use. The contesting team at 4O3A in Montenegro couldn’t find the perfect headset, so they designed their own. Now sold by DX Engineering as O3A-4O-NC-1, this headset combination consists of two parts, the NC-1 Headphone Set and the MC-1 Boom Mic Set, both available separately. All features and specs appear on each individual part detail page and below.

NC-1 Noise Canceling Bluetooth Headphone Set (O3A-4O-NC-HP)

• Excellent Ambient Noise Canceling

• Crystal Clear Sound

• Bluetooth 5.0 for Android and Apple mobile devices, laptops, tablets, PC and interfaced radios

• Long life 750mA rechargeable Li-Ion battery

• Includes a zipper case, USB A to USB C charge cable and an extra pair of ear cushions.

4O3A NC-1 Headphone Specifications:

• Bluetooth Version: 5.0 (Bestechnic Chipset)

• Bluetooth Range: 33Ft/10m

• Magnet Type: Neodymium

• Sensitivity: 110±3Db @1Khz 1mv

• Nominal Impedance: 32Ω±10%

• Battery: 750mAh, LI-Ion

• Voltage: 3.7V

• Rated Power: <10mW

• Battery Life: >25 hours

• Charging Time: Approx. 3 to 4 hours

• Charging Port: Type C

• Frequency Response: 20 Hz-20 kHz

• Supports: HFP/HSP/A2DP/AVRCP/SBC/MP3/AAC

MC-1 Boom Mic Set (O3A-4O-NC-MC-1)

• Versatile affordable plug-in condenser boom mic with universal 3.5mm mic and headphone cables (detachable from the NC-1 Headphones for use without the boom mic)

• Works for all transceivers (with optional adapters) and plugs into laptops, tablets and PC

• Superior vocal clarity with a wide, flat frequency response

• Includes soft case, 3.5mm to 6.35mm adapter and two boom mic windscreens.

4O3A MC-1 Boom Mic Specifications:

• Dimension: 3.819 in. x 1.850 in. (Φ9.7±0.2x4.7±0.2 (H)mm)

• Sensitivity: -38±3DB (0dB=1V/Pa, 1kHz)

• Directivity: Omnidirectional

• Impedance ≤ 2.2kΩ

• S/N: 60dB>

• Standard Power: 4.5V

• Operating Voltage: 1 – 10 VDC (sensitivity reduction -3dB at 1.5V)

• Max input sound: 110dB SPL

• Current Consumption: Max. 0.5mA