Countryman B3 Omni Lavalier Microphone | Connector Code: AX, Color: White, Sensitivity: (W4) Standard Gain
Countryman B3 Omni Lavalier Microphone | Connector Code: AX, Color: White, Sensitivity: (W4) Standard Gain
SoundPro Item: 133354 | Part Number: B3W4FF05WAX
Usually ships in 5-7 business days
- Field-selectable high-frequency response caps
- Water-resistant
- Available in multiple colors
- Ultra-thin diaphragm for extremely low handling noise
- Rugged aramid core cable
- Detachable connectors
- Up to 150 dB SPL capability
Connectors Available Online
- ATCH - Hirose 4 pin screw-down cH-style - For Audio Technica: ATW-3201
- AT - Hirose 4 pin - For Audio Technica: ATW-T1801, ATW-T201, ATW-T210, ATW-T210a, ATW-T27, ATW-T31, ATW-T310, ATW-T310b, ATW-T51
- SL - TA4F - For Shure: AD1, ADX1, AXT100TA4F, BLX1, FP1, GLXD1, PG1, PGXD1, QLXD1, SLX1, UC1, ULX1, ULXD1, UR1, UR1M
- SR - 3.5 mm Locking Connector - For Sennheiser: Evolution Wireless G1-G4, SK 1093, SK 20, SK AVX, SK D1, SK-XSW, SL Bodypack DW
- Need a different connector? Call an Account Manager today at 800.203.5611
Countryman's B3 is essential to any well-stocked pro audio toolkit: it captures the highest quality audio available in a lavalier mic, with field-selectable high-frequency response caps and extremely low handling noise.
Whether you need a tie-clip lavalier for an interview, a hidden hair mic for drama, a water-resistant mic for reality TV, sports, or hurricane reporting, or simply a small mic to hide in a prop flower vase, you'll never run out of applications for Countryman's B3 Lavalier.

- Transducer TypeCondenser
- Polar PatternOmnidirectional
- Frequency Response20 Hz - 20 kHz
- Power RequirementsWireless: 3V to 12V at 200 uA
- Phantom9V to 48V (4mA at 48V)
- Weight0.012 oz (0.34 g)
- Dimensions0.23 x 0.18 inches (5.8 x 4.6mm)
- Sensitivity
- W4 (no band): 12.0 mV/Pascal (-38 dB re 1V/Pa)
- W5 (red band): 4.0 mV/Pascal (-48 dB re 1V/Pa)
- Equivalent Acoustic Noise24 dBA
- Overload Sound Level
- Wireless: 140 dBA SPL (5V, red band)
- Phantom: 150 dBA SPL (48V, red band)
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