VT901 - Microphone Voice Technologies - Free user manual and instructions

Product Type	Earhanger Microphone
Brand	Voice Technologies
Model	VT901
Generating Element	Electret Condenser
Polar Pattern	Omni-Directional
Frequency Range	20 - 20,000 Hz
Sensitivity	-35 dB ±3 dB (17.8 mV/Pa at 1 kHz)
Noise Level	25 dB A-weighted
Max. Input SPL	125 dB
Impedance	2 kOhm
Bias Voltage	0.8 - 5 V
Wiring Configuration	2-wire: Red (+VDC), Copper (Ground)
Weight	5 g (0.18 oz)
Cable Length	1.2 m (3.9 ft)
Cable Diameter	1.3 mm
Colors Available	Beige
Application Areas	Vocals, Broadcast, Stage
Ear Compatibility	Left or Right Ear
Fastening Type	Spiral ear fastener (soft, flexible)
Cable Removable	Yes (easily exchangeable for different wireless systems)
Spare Parts	Spiral ear-wrap, windscreens (WSi701/901 & WS701), cable
Accessories Included	AC400 (color: beige or black), WSi701/901 miniature windscreen, WS701 windscreen, VT701/901/910 transparent box (164x164x12 mm)
Discreet Design	Extremely light, cable runs along head for minimal visibility
Cleaning	Wipe with a soft, damp cloth; avoid moisture ingress

Frequently Asked Questions - VT901 Voice Technologies

How do I clean the VT901 microphone?

Gently wipe the microphone and cable with a soft, damp cloth. Avoid using harsh chemicals or submerging the microphone in water. Ensure the capsule and connectors remain dry.

Can the VT901 be worn on either ear?

Yes, the VT901 earhanger can be worn on both the left and right ear. The flexible spiral ear fastener ensures a secure fit regardless of side.

What type of polarity pattern does the VT901 have?

The VT901 features an omni-directional polar pattern, capturing sound equally from all directions for natural voice reproduction.

Is the cable on the VT901 replaceable?

Yes, the cable is removable and can be easily exchanged to connect to different wireless systems. This is a convenient feature for rental houses and users with multiple wireless brands.

What is the frequency response of the VT901?

The VT901 has a frequency range of 20 Hz to 20,000 Hz, covering the full spectrum of human hearing for clear audio.

What is the impedance of the VT901?

The microphone impedance is 2 kOhm, making it compatible with most wireless transmitters and audio inputs.

Does the VT901 require a power source?

Yes, the VT901 is an electret condenser microphone that requires a bias voltage of 0.8 to 5 V, typically supplied by the connected wireless transmitter.

What accessories are included with the VT901?

The package includes the VT901 microphone, an AC400 adapter (beige or black), a WSi701/901 miniature windscreen, a WS701 windscreen, and a transparent storage box (164x164x12 mm).

What is the weight of the VT901 microphone?

The VT901 weighs only 5 grams (0.18 oz), providing exceptional wearing comfort even during extended use.

Can I use the VT901 with any wireless system?

The VT901 has a standard 2-wire wiring (red for +VDC, copper for ground) and a removable cable, allowing connection to most wireless systems by swapping the cable or using an adapter. Check compatibility with your transmitter's connector.

USER MANUAL VT901 Voice Technologies

VT901MKII Earhanger Microphone

Fits perfect, hardly seen, sounds ideal.

The VT901MKII is a new extremely light earhanger microphone that offers exceptional voice transmission and superb wearing comfort. The VT901MKII boasts a specialized super-miniature omni capsule producing very natural speech and vocals. The successor of the VT901 has been developed based on customer feedback – the cable now runds directly along the head of the user. This makes it even more discreet when being used on stage, during broadcast productions and for presentations, without affecting the ergonomic design. The soft "spiral ear fastener" gives any user the perfect fit every time without the fear of it slipping off. The VT901MKII can be worn either on the left or the right ear. The high wearing comfort is achieved through the low weight as well as through its very flexible material; thus the microphone is comfortable even after many hours. The cable is removable and can be easily exchanged to swap connectivity between different wireless systems. This must-have design feature for rental houses also benefits individual users who have backup wireless systems by different brands. The spiral ear-wrap section can be exchanged as well.

Colors: beige

Application area: Vocals - Broadcast - Stage

The VT901MKII comes in a transparent box with the following accessories:

	AC400 Colors: beige or black
	WSi701/901	Miniature WindscreenColors: beige or black
	WS701	WindscreenColors: beige
	VT701/901/910 Box	Transparent box size 164x164x12mm

Specifications Wiring configuration (2-wire):
Generating Element:	Electret Condenser
Polar Pattern:	Omni-Directional
Frequency Range: 20-20'000Hz
Sensitivity: -35dB ±3dB 1V/microbar (17.8mV/Pa)
Noise Level: 25dB "A" weighted
Max. Input SPL: 125dB
Impedance: 2 kOhm
Bias/+VDC: 0.8-5V
Colors: beige
Cable: Length 1,2m ∅ 1.3mm
Weight: 5 g

Red +VDC
Copper Ground