{"product_id":"wired-headset-microphone-3-5mm-cardioid-dynamic-voice-amplifier","title":"Wired Headset Mic 3.5mm Cardioid Dynamic | Voice Amplifier","description":"\n\u003ch2\u003eWired Headset Microphone – Clear, Hands-Free Audio for Voice Amplifiers \u0026amp; Speakers\u003c\/h2\u003e\n\u003cp\u003eStay heard without holding a thing. This lightweight wired headset microphone delivers crisp, clear audio through a cardioid polar pattern that captures your voice directly while minimising background noise. With a 3.5mm jack and a 100cm cable, it plugs straight into your voice amplifier, PA speaker, or conferencing system — no batteries, no pairing, no hassle.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCardioid Polar Pattern:\u003c\/strong\u003e Focuses on your voice and reduces unwanted ambient sound for cleaner audio pick-up.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBack-Pole Electret Transducer:\u003c\/strong\u003e Delivers a wide frequency response of 50 Hz – 16 kHz for natural, full-range vocal reproduction.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3.5mm Jack Connector:\u003c\/strong\u003e Compatible with most voice amplifiers, portable PA speakers, and conference systems with a 3.5mm input.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e100cm (1m) Cable:\u003c\/strong\u003e Gives you comfortable freedom of movement during presentations, teaching, or live speaking.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHands-Free Headset Design:\u003c\/strong\u003e Over-ear mounting keeps the mic positioned consistently at the corner of your mouth — no stand required.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo Built-In Battery Required:\u003c\/strong\u003e Powered directly by the device (operating voltage: 1.5V via plug-in power).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlug-and-Play:\u003c\/strong\u003e No drivers or software needed — connect and start speaking immediately.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTransducer Type:\u003c\/strong\u003e Back-pole electret (dynamic)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePolar Pattern:\u003c\/strong\u003e Cardioid (single-point directivity)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e 50 Hz – 16 kHz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSensitivity:\u003c\/strong\u003e –45 dB ±3 dB (0 dB = 1V\/Pa @ 1 kHz)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Impedance:\u003c\/strong\u003e 1000 Ω ±30% (@ 1 kHz)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e 1.5 V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnector:\u003c\/strong\u003e 3.5mm jack\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCable Length:\u003c\/strong\u003e 100 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSet Type:\u003c\/strong\u003e Single microphone\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Wired Headset Microphone\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eMade in Mainland China.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/25-in-1-precision-magnetic-screwdriver-set-pro-repair-tool-kit\"\u003e25-in-1 Precision Magnetic Screwdriver Set | Pro Repair Kit\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10-pack-rubber-strain-relief-cord-boot-protector-sleeves-4-6-5-2-6mm\"\u003e10-Pack Rubber Strain Relief Cord Boot Protectors 4.6–6mm\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What devices is this wired headset microphone compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This microphone uses a standard 3.5mm jack, making it compatible with most voice amplifiers, portable PA speakers, karaoke machines, and conference devices that feature a 3.5mm microphone input. Always confirm your device supports plug-in power (1.5V) to power the electret capsule.\u003c\/p\u003e\n\u003ch4\u003eQ: Does this headset microphone require batteries?\u003c\/h4\u003e\n\u003cp\u003eA: No — there is no built-in battery. The microphone draws its operating voltage (1.5V) directly from the connected device via plug-in power through the 3.5mm jack, so it's ready to use straight out of the box.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the benefit of a cardioid polar pattern for speaking?\u003c\/h4\u003e\n\u003cp\u003eA: A cardioid pattern captures sound primarily from the front (your mouth) and rejects noise from the sides and rear. This makes it ideal for presentations, teaching, public speaking, and conferences where you want your voice to be heard clearly without picking up excessive room noise or feedback.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What devices is this wired headset microphone compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This microphone uses a standard 3.5mm jack, making it compatible with most voice amplifiers, portable PA speakers, karaoke machines, and conference devices that feature a 3.5mm microphone input. Always confirm your device supports plug-in power (1.5V) to power the electret capsule.\"}}, {\"@type\": \"Question\", \"name\": \"Does this headset microphone require batteries?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — there is no built-in battery. 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